RefID Author MedlineID Title 11 Carr, JK 8709215 Full-length sequence and mosaic structure of a human immunodeficiency virus type 1 isolate from Thailand. 14 Howard, TM 8893049 Genomic structure and nucleotide sequence analysis of a new HIV type 1 subtype A strain from Nigeria. 16 Gao, F 8794346 The heterosexual human immunodeficiency virus type 1 epidemic in Thailand is caused by an intersubtype (A/E) recombinant of African origin. 17 Salminen, MO 8891112 Full-length sequence of an Ethiopian human immunodeficiency virus type 1 (HIV-1) isolate of genetic subtype C. 18 Soto-Ramirez, LE 8948366 HIV-1 pol sequences from India fit distinct subtype pattern. 54 Winslow, DL 7734183 Limited sequence diversity of the HIV type 1 protease gene from clinical isolates and in vitro susceptibility to HIV protease inhibitors. 55 Yamaguchi, K 8519793 Clinical isolates of HIV-1 contain few pre-existing proteinase inhibitor resistance-conferring mutations. 64 Condra, JH 8970946 Genetic correlates of in vivo viral resistance to indinavir, a human immunodeficiency virus type 1 protease inhibitor. 66 Schapiro, JM 8633817 The effect of high-dose saquinavir on viral load and CD4+ T-cell counts in HIV-infected patients. 67 Winters, MA 9087484 Human immunodeficiency virus type 1 reverse transcriptase genotype and drug susceptibility changes in infected individuals receiving dideoxyinosine monotherapy for 1 to 2 years. 68 Schmit, J-C 8853733 Resistance-related mutations in the HIV-1 protease gene of patients treated for 1 year with the protease inhibitors ritonavir (ABT-538). 69 Shafer, RW 9188616 Sequence and drug susceptibility of subtype C reverse transcriptase from human immunodeficiency virus type 1 seroconverters in Zimbabwe. 71 Demeter, LM 10681363 Delavirdine susceptibilities and associated reverse transcriptase mutations in human immunodeficiency virus type I isolates from patients in a phase I/II trial of delavirdine monotherapy (ACTG 260). 72 Shafer, RW 7541064 Drug resistance and heterogeneous long-term virologic responses of human immunodeficiency virus type 1 - infected subjects to zidovudine and didanosine combination therapy. 77 Alizon, M 2424612 Genetic variability of the AIDS virus: nucleotide sequence analysis of two isolates from African patients. 107 Cornelissen, M 9261352 Pol diversity of five HIV-1 subtypes: evidence for naturally occurring mutations that contribute to drug resistance, limited recombination patterns, and common ancestry for subtypes B and D. 110 McIntosh, A Complete genome sequence of a Cambridge isolate of human immunodeficiency virus type 1. 113 Fitzgibbon, JE 1317143 Human immunodeficiency virus type 1 pol gene mutations which cause decreased susceptibility to 2',3'-dideoxycytidine. 134 Vanden Haesevelde, M 8107220 Genomic cloning and complete sequence analysis of a highly divergent African human immunodeficiency virus isolate. 135 Gurtler, LG 8107219 A new subtype of human immunodeficiency virus type 1 (MVP-5180) from Cameroon. 140 Quinones-Mateu, ME 7576917 Molecular characterization of human immunodeficiency virus type 1 from Venezuela. 141 Molla, A 8673921 Ordered accumulation of mutations in HIV protease confers resistance to ritonavir. 142 Vallejo, A 9715837 Tropism, co-receptor use, and genetic characterization of the V3 loop and the protease gene of HIV-1 group O isolates. 144 Shafer, RW 8133086 Combination therapy with zidovudine and didanosine selects for drug-resistant human immunodeficiency virus type 1 strains with unique patterns of pol gene mutations. 148 Gao, F 8627686 Molecular cloning and analysis of functional envelope genes from human immunodeficiency virus type 1 sequence subtypes A through G. The WHO and NIAID networks for HIV isolation and characterization. 150 Ellenberger, DL 10024047 Genetic analysis of human immunodeficiency virus in Abidjan, Ivory Coast reveals predominance of HIV type 1 subtype A and introduction of subtype G. 151 Nijhuis, M 9237704 Lamivudine-resistant human immunodeficiency virus type 1 variants (184V) require multiple amino acid changes to become co-resistant to zidovudine in vivo. 154 Pieniazek, D 9866744 Evidence for the introduction of multiple HIV-1 subtypes in Lebanon. 155 Zhang, Y-M 9261388 Drug resistance during indinavir therapy is caused by mutations in the protease gene and in its gag substrate cleavage sites. 158 Descamps, D 9343254 Susceptibility of human immunodeficiency virus type 1 group O isolates to antiretroviral agents: in vitro phenotypic and genotypic analyses. 160 Gao, F 9621027 A comprehensive panel of near-full-length clones and reference sequences for non-subtype B isolates of human immunodeficiency virus type 1. 165 Apetrei, C 9557632 Human immunodeficiency virus type 1 subtype F reverse transcriptase sequence and drug susceptibility. 167 Graf, M 9491920 Cloning and characterization of a virtually full-length HIV-1 genome from a subtype B'-Thai strain representing the most prevalent B-clade isolate in china. 168 Shafer, RW 9634429 Multiple concurrent reverse transcriptase and protease mutations and multidrug resistance of HIV-1 isolates from heavily treated patients. 173 Shafer, RW 10024054 Sequence and drug susceptibility of HIV-1 type C protease from human immunodeficiency virus type 1 seroconverters in Zimbabwe. 177 Winters, MA 9573309 Human immunodeficiency virus type 1 protease genotypes and in vitro protease inhibitor susceptibilities of isolates from individuals who were switched to other protease inhibitors after long-term saquinavir treatment. 180 Lole, KS 9847317 Full-length human immunodeficiency virus type 1 genomes from subtype C-infected seroconverters in India, with evidence of intersubtype recombination. 181 Mulato, AS 9660994 Genotypic and phenotypic characterization of human immunodeficiency virus type 1 variants isolated from AIDS patients after prolonged adefovir dipivoxil therapy. 183 Carr, JK 9683568 Full genome sequences of human immunodeficiency virus type 1 subtypes G and A/G intersubtype recombinants. 531 Lin, PF 7963708 Genotypic and phenotypic analysis of human immunodeficiency virus type 1 isolates from patients on prolonged stavudine therapy. 602 Ruiz, L 8970679 Efficacy of triple combination therapy with zidovudine (ZDV) plus zalcitabine (ddC) plus lamivudine (3TC) versus double (ZDV+3TC) combination therapy in patients previously treated with ZDV+ddC. 697 Albert, J 7520096 Analysis of a rape case by direct sequencing of the human immunodeficiency virus type 1 pol and gag genes. 701 Jonassen, TO 9143301 Sequence analysis of HIV-1 group O from Norwegian patients infected in the 1960s. 704 Ruiz, L 9732064 Efficacy of adding indinavir to previous reverse transcriptase nucleoside analogues in relation to genotypic and phenotypic resistance development in advanced HIV-1-infected patients. 705 Patick, AK 9756769 Genotypic and phenotypic characterization of human immunodeficiency virus type 1 variants isolated from patients treated with the protease inhibitor nelfinavir. 708 Oelrichs, RB 9824329 A novel subtype A/G/J recombinant full-length HIV Type 1 genome from Burkina Faso. 709 Gao, F 9811767 An isolate of human immunodeficiency virus type 1 originally classified as subtype I represents a complex mosaic comprising three different group M subtypes. 711 Craig, C 9764779 HIV protease genotype and viral sensitivity to HIV protease inhibitors following saquinavir therapy. 718 Winters, MA 9819361 A 6-basepair insert in the reverse transcriptase gene of human immunodeficiency virus type 1 confers resistance to multiple nucleoside inhibitors. 719 Laukkanen, T 10052760 Virtually full-length sequences of HIV type 1 subtype J reference strains. 720 Oelrichs, RB 10221535 Full-length genomic sequence of a subtype G HIV-1 from Kinshasa. 722 Tanuri, A 9925514 Genetic variation and susceptibilities to protease inhibitors among subtype B and F isolates in Brazil. 724 Novitsky, VA 10196340 Molecular cloning and phylogenetic analysis of human immunodeficiency virus type 1 subtype C: a set of 23 full-length clones from Botswana. 735 Orlandi, P 9803964 Analysis of HIV-1 reverse transcriptase gene mutations in infected children treated with zidovudine. 742 Palmer, S 10397560 Highly drug-resistant HIV-1 clinical isolates are cross-resistant to many antiretroviral compounds in current clinical development. 753 Lawrence, J 10228055 Clinical resistance patterns and responses to two sequential protease inhibitor regimens in saquinavir and reverse transcriptase inhibitor-experienced persons. 754 Nasioulas, G 10357470 Molecular analysis of the full-length genome of HIV type 1 subtype I: evidence of A/G/I recombination. 755 Zolopa, AR 10610625 HIV-1 genotypic resistance patterns predict response to saquinavir/ritonavir in patients in whom previous protease inhibitor therapy failed. 756 Shulman, NS 10839657 Efavirenz- and adefovir dipivoxil-based salvage therapy in highly treatment-experienced patients: clinical and genotypic predictors of virologic response. 763 Deeks, SG 10228057 Novel four-drug salvage treatment regimens after failure of a human immunodeficiency virus type 1 protease inhibitor-containing regimen: antiviral activity and correlation of baseline phenotypic drug susceptibility with virologic outcome. 764 Venturi, G 10385016 Genotypic resistance to zidovudine as a predictor of failure of subsequent therapy with human immunodeficiency virus type-1 nucleoside reverse-transcriptase inhibitors. 767 Carr, JK Direct Genbank submission: HIV-1 isolates from the Democratic Republic of the Congo and from Gabon. 769 Simon, F 9734396 Identification of a new human immunodeficiency type 1 group distinct from group M and group O. 779 Cabana, M 10534730 Emergence and genetic evolution of HIV-1 variants with mutations conferring resistance to multiple reverse transcriptase and protease inhibitors. 780 Gatanaga, H 10580399 Anti-HIV effect of saquinavir combined with ritonavir is limited by previous long-term therapy with protease inhibitors. 781 Milazzo, L 10534153 Evidence of stavudine-related phenotypic resistance among zidovudine-pretreated HIV-1-infected subjects receiving a therapeutic regimen of stavudine plus lamivudine. 783 Montavon, C 10606094 The identification of a complex A/G/I/J recombinant HIV type 1 virus in various West African countries. 784 Laukkanen, T 10725202 Virtually full-length subtype F and F/D recombinant HIV-1 from Africa and South America. 786 Liitsola, K 10933619 An AB recombinant and its parental HIV type 1 strains in the area of the former Soviet Union: low requirements for sequence identity in recombination. UNAIDS Virus Isolation Network. 787 Novitsky, VA 10890363 HIV-1 A/J recombinant with a pronounced pol gene mosaicism. 792 Pellegrin, I 10509572 Emergence of zidovudine and multidrug-resistance mutations in the HIV-1 reverse transcriptase gene in therapy-naive patients receiving stavudine plus didanosine combination therapy. 800 Triques, K 10659053 Near full length genome sequencing of divergent African HIV type 1 subtype F viruses leads to identification of a new HIV type 1 designated K. 801 Jonassen, TO 10628816 Intersubtype recombinant HIV type 1 involving HIV-MAL-like and subtype H-like sequence in four Norwegian cases. 802 Holguin, A 10772537 Recombinant human immunodeficiency viruses type 1 circulating in Spain. 805 Becker-Pergola, G 10826487 Analysis of HIV type 1 protease and reverse transcriptase in antiretroviral drug naive Ugandan adults. 806 Venturi, G 10669367 Antiretroviral resistance mutations in human immunodeficiency virus type 1 reverse transcriptase and protease from paired cerebrospinal fluid and plasma samples. 808 Falloon, J 10671334 Combination therapy with amprenavir, abacavir, and efavirenz in human immunodeficiency virus (HIV)-infected patients failing a protease-inhibitor regimen: pharmacokinetic drug interactions and antiviral activity. 817 Miller, V 10708287 HIV-1 reverse transcriptase (RT) genotype and susceptibility to RT inhibitors during abacavir monotherapy and combination therapy. 819 Op de Coul, E 10716370 Genetic evidence of multiple transmissions of HIV type 1 subtype F within Romania from adult blood donors and to children. 820 Shulman, NS 11468426 Genotypic correlates of a virologic response to stavudine after zidovudine monotherapy. 823 Sevin, AD 10882582 Methods for investigating the relationship between drug-susceptibility phenotype and HIV-1 genotype with applications to ACTG 333. 825 Huang, W A novel HIV-1 RT mutation (M230L) confers NNRTI resistance and dose-dependent stimulation of replication. 827 Holguin, A 11018859 Protease gene analysis of HIV Type 1 non-B subtypes in Spain. 828 Belec, L 10823790 High levels of drug resistance human immunodeficiency virus variants in patients exhibiting increasing CD4 + t cell counts despite virologic failure of protease inhibitors containing antiretroviral combination therapy. 834 Coakley, EP 10708277 Phenotypic and genotypic resistance patterns of HIV-1 isolates derived from individuals treated with didanosine and stavudine. 835 Carr, JK 10513639 Characterization of subtype A HIV-1 from Africa by full genome sequencing. 838 Quinones-Mateu, ME 9765445 Analysis of pol gene heterogeneity, viral quasispecies, and drug resistance in Individuals infected with Group O strains of human immunodeficiency virus type 1. 839 Atkinson, B 10915071 Correlation between human immunodeficiency virus genotypic resistance and virologic response in patients receiving nelfinavir monotherapy or nelfinavir with lamivudine and zidovudine. 842 Bacheler, LT 10952598 Human immunodeficiency virus type 1 mutations selected in patients failing efavirenz combination therapy. 843 Brindeiro, RM 10390221 Sequence diversity of the reverse transcriptase of human immunodeficiency virus type 1 from untreated Brazilian individuals. 849 Balotta, C 10969347 Prevalence of multiple dideoxynucleoside analogue resistance (MddNR) in a multicenter cohort of HIV-1 infected Italian patients with virologic failure. 852 Jorgensen, LB 11075938 Genotypic and phenotypic nevirapine resistance correlates with virological failure during salvage therapy including abacavir and nevirapine. 853 Vergne, L 11060045 Genetic diversity of protease and reverse transcriptase sequences in non-subtype-B human immunodeficiency virus type 1 strains: evidence of many minor drug resistance mutations in treatment-naive patients. 854 Anderson, JP 11044120 Testing the hypothesis of a recombinant origin of human immunodeficiency virus type 1 subtype E. 857 Parkin, NT 11153669 Loss of antiretroviral drug susceptibility at low viral load during early virological failure in treatment-experienced patients. 858 Jackson, JB 10983633 Identification of the K103N resistance mutation in Ugandan women receiving nevirapine to prevent HIV-1 vertical transmission. 860 Rousseau, MN 11176267 Patterns of resistance mutations to antiretroviral drugs in extensively treated HIV-1-infected patients with failure of highly active antiretroviral therapy. 861 de Baar, Michel P 11018858 Natural residues versus antiretroviral drug-selected mutations in HIV type 1 group O reverse transcriptase and protease related to virological drug failure in vivo. 862 Kijak, GH 11417764 Resistance profiles to antiretroviral drugs in HIV-1 drug-naive patients in Argentina. 863 Papa, A 11955641 HIV-1 subtypes and circulating recombinant forms (CRFs) in Northern Greece. 864 Parkin, NT Discordance between genotype-based predictions of protease inhibitor susceptibility and actual phenotype in HIV-1 isolates containing mutations at positions 82 and 90: Modulatory effects of mutations at secondary positions. 865 Brun, S Patterns of protease inhibitor cross resistance in viral isolates with reduced susceptibility to lopinavir. 866 Perez, EE 11170983 Human immunodeficiency virus type 1 protease genotype predicts immune and viral responses to combination therapy with protease inhibitors (PIs) in PI-naive patients. 867 Koch, N 11177411 Genetic analysis of HIV type 1 strains in Bujumbura (Burundi): Predominance of subtype C variant. 869 Maguire, M 11850255 Emergence of resistance to protease inhibitor amprenavir in human immunodeficiency virus type 1-infected patients: selection of four alternative viral protease genotypes and influence of viral susceptibility to coadministered reverse transcriptase nucleoside inhibitors. 870 Gonzales, MJ 11574914 HIV-1 reverse transcriptase and protease subtypes: classification, amino acid mutation patterns, and prevalence in a Northern California clinic-based population. 871 Thomson, MM 11242148 HIV-1 genetic diversity in Galicia Spain: BG intersubtype recombinant viruses circulating among injecting drug users. 872 Balotta, C 11511828 Increasing prevalence of non-clade B HIV-1 strains heterosexuals, as monitored by the analysis of the RT and protease sequences. 874 Walter, H 11142619 Phenotypic HIV-1 resistance correlates with treatment outcome of nelfinavir salvage therapy. 875 Servais, J 11181376 Variant human immunodeficiency virus type 1 proteases and response to combination therapy including a protease inhibitor. 876 Si-Mohamed, A 10882588 Selection of drug-resistant variants in the female genital tract of human immunodeficiency virus type 1-infected women receiving antiretroviral therapy. 879 Bacheler, LT 11333879 Genotypic correlates of phenotypic resistance to Efavirenz in virus isolates from patients failing nonnucleoside reverse transcriptase inhibitor therapy. 880 Servais, J 11158089 Comparison of DNA sequencing and a line probe assay for detection of human immunodeficiency virus type 1 drug resistance mutations in patients failing highly active antiretroviral therapy. 885 Delgado, E 11429115 Analysis of HIV type 1 protease and reverse transcriptase sequences from Venezuela for drug resistance-associated mutations and subtype classification: a UNAIDS study. 886 Holguin, A 11326002 Prevalence of human immunodeficiency virus type 1 (HIV-1) Non-B subtypes in foreigners living in Madrid, Spain, and comparison of the performances of the AMPLICOR HIV-1 MONITOR version 1.0 and the new automated version 1.5. 890 Koulinska, IN 11282011 A new human immunodeficiency virus type 1 circulating recombinant form from Tanzania. 891 Van Laethem, K 10770556 Patient HIV strains carrying the multiple nucleoside resistance mutations are cross-resistant to abacavir. 892 Yahi, N 11294661 Use of drug resistance sequence data for the systematic detection of non-B human immunodeficiency virus type 1 (HIV-1) subtypes: how to create a sentinel site for monitoring the genetic diversity of HIV-1 at a country scale. 894 Janssens, W 10954895 Near full-length genome analysis of HIV type 1 CRF02.AG subtype C and CRF02.AG subtype G recombinants. 895 Caumont, A 11559429 Sequence analysis of env C2/V3, gag p17/p24, and pol protease regions of 25 HIV type 1 isolates from Ho Chi Minh city, Vietnam. 896 Masciotra, S 10890362 Evidence of a high frequency of HIV-1 subtype F infections in a heterosexual population in Buenos Aires, Argentina. 897 Nkengasong, JN 10866237 Distribution of HIV-1 subtypes among HIV-seropositive patients in the interior of Cote d'Ivoire. 898 Pandrea, I 11559431 Hiv type 1 genetic diversity and genotypic drug susceptibility in the Republic of Moldova. 900 Piyasirisilp, S 11070028 A recent outbreak of human immunodeficiency virus type 1 infection in southern China was initiated by two highly homogeneous, geographically separated strains, circulating recombinant form AE and a novel BC recombinant. 901 Thomson, MM 10839601 Widespread circulation of a B/F intersubtype recombinant form among HIV-1-infected individuals in Buenos Aires, Argentina. 902 Vicente, AC 11324755 Genetic variability of HIV-1 protease from Nigeria and correlation with protease inhibitors drug resistance. 903 Weidle, PJ 11391172 Resistance to antiretroviral therapy among patients in Uganda. 904 Cornelissen, M 10644851 Spread of distinct human immunodeficiency virus type 1 AG recombinant lineages in Africa. 905 Rodenburg, CM 11177395 Near full-length clones and reference sequences for subtype C isolates of HIV type 1 from three different continents. 906 Kempf, DJ 11462018 Identification of genotypic changes in human immunodeficiency virus protease that correlate with reduced susceptibility to the protease inhibitor lopinavir among viral isolates from protease inhibitor-experienced patients. 909 Fitzgibbon, JE 11602042 Emergence of drug resistance mutations in a group of HIV-infected children taking nelfinavir-containing regimens. 910 Piyasujabul, D 12126721 Effect of perinatal short-course zidovudine on the clinical and virological manifestations of HIV-1 subtype E infection in infants. 911 Sirivichayakul, S 11485625 Survey of reverse transcriptase from the heterosexual epidemic of human immunodeficiency virus type 1 CRF01_AE in Thailand from 1990 to 2000. 912 van Harmelen, J, 11709097 Characterization of full-length HIV type 1 subtype C sequences from South Africa. 913 Zachary, KC 11700580 Human immunodeficiency virus type 1 hypersusceptibility to amprenavir in vitro can be associated with virus load response to treatment in vivo. 930 Snoeck, J 11955642 Prevalence and origin of HIV-1 group M subtypes among patients attending a Belgian hospital in 1999. 933 Fonjungo, PN 11880402 Human immunodeficiency virus type 1 group m protease in Cameroon: genetic diversity and protease inhibitor mutational features. 934 Tebit, DM 11804555 Genotypic and phenotypic analysis of HIV type 1 primary isolates from western Cameroon. 935 de Sa Filho, DJ Mutations associated with drug resistance in a population of drug naive HIV-1 infected individuals. 937 Vergne, L 11832686 Resistance to antiretroviral treatment in Gabon: need for implementation of guidelines on antiretroviral therapy use and HIV-1 drug resistance monitoring in developing countries. 944 Kantor, R 11897594 Evolution of primary protease inhibitor resistance mutations during protease inhibitor salvage therapy. 951 Gonzales, MJ 12660525 Extended spectrum of HIV-1 reverse transcriptase mutations in patients receiving multiple nucleoside analog inhibitors. 952 Colonno, RJ 15122516 Identification of I50L as the signature atazanavir (ATV)-resistance mutation in treatment-naive HIV-1-infected patients receiving ATV-containing regimens. 953 Margot, NA 12045487 Genotypic and phenotypic analyses of HIV-1 in antiretroviral-experienced patients treated with tenofovir DF. 955 Perez-Alvarez, L 11579264 HIV-1 subtype G and BG recombinant viruses in Spanish natives: evidence of characteristic mutations in reverse transcriptase and protease. 956 Caride, E 11724274 Genotypic and phenotypic evidence of different drug-resistance mutation patterns between B and non-B subtype isolates of human immunodeficiency virus type 1 found in Brazilian patients failing HAART. 960 Wu, TD 12663790 Mutation patterns and structural correlates in human immunodeficiency virus type 1 protease following different protease inhibitor treatments. 961 Dowling, WE 12218394 Forty-one near full-length HIV-1 sequences from Kenya reveal an epidemic of subtype A and A-containing recombinants. 962 Hoelscher, M 11504977 High proportion of unrelated HIV-1 intersubtype recombinants in the Mbeya region of southwest Tanzania. 964 Holguin, A 12004275 High prevalence of HIV-1 subtype G and natural polymorphisms at the protease gene among HIV-infected immigrants in Madrid. 965 Cuevas, MT 12172086 High HIV-1 genetic diversity in Cuba. 967 Dunne, AL 11504978 Comparison of genotyping and phenotyping methods for determining susceptibility of HIV-1 to antiretroviral drugs. 968 Ait-Khaled, M 12008787 Mutations in HIV-1 reverse transcriptase during therapy with abacavir, lamivudine, zidovudine in HIV-1 infected adults with no prior antiretroviral therapy. 969 Ariyoshi, K 12843744 Patterns of point mutations associated with antiretroviral drug treatment failure in CRF01_AE (subtype E) infection differ from subtype B infection. 975 Romano, L 12154345 Treatment with lopinavir/ritonavir in heavily pretreated subjects failing multiple antiretroviral regimens in clinical practice. 979 Rodrigues, R 15780815 Prevalence of ARV resistance mutations and impact of genotyping test in HIV patients with advance disease in Sao Paulo, Brazil. 980 Eshleman, SH 11509999 Impact of human immunodeficiency virus type 1 (hiv-1) subtype on women receiving single-dose nevirapine prophylaxis to prevent hiv-1 vertical transmission (HIV network for prevention trials 012 study). 981 Cho, YK 11923351 Frequency of mutations conferring resistance to nucleoside reverse transcriptase inhibitors in human immunodeficiency virus type 1-infected patients in Korea. 982 Eshleman, SH 11372025 Analysis of human immunodeficiency virus type 1 drug resistance in children receiving nucleoside analogue reverse-transcriptase inhibitors plus nevirapine, nelfinavir, or ritonavir (Pediatric AIDS Clinical Trials Group 377). 983 Naugler, WE 11865396 T69D/N pol mutation, human immunodeficiency virus type 1 RNA levels, and syncytium-inducing phenotype are associated with CD4 cell depletion during didanosine therapy. 984 Novitsky, V 11991972 Human immunodeficiency virus type 1 subtype C molecular phylogeny: consensus sequence for an AIDS vaccine design? 985 Papathanasopoulos, MA 12201911 Full-length genome analysis of HIV-1 subtype C utilizing CXCR4 and intersubtype recombinants isolated in South Africa. 986 Yang, R 12131217 On-going generation of multiple forms of HIV-1 intersubtype recombinants in the Yunnan Province of China. 989 Duque, V Prevalence of drug resistance and HIV-1 subtypes in antiretroviral inexperienced patients, during the year 2000 in Portugal. 990 Handema, R 12643279 Prevalence of drug-resistance-associated mutations in antiretroviral drug-naive Zambians infected with subtype C HIV-1. 992 Weber, J 15839752 Impact of HIV-1 subtype and antiretroviral therapy on protease and reverse transcriptase genotype: Results of a global collaboration. 993 Tscherning-Casper, C 10957728 Evidence of the existence of a new circulating recombinant form of HIV type 1 subtype A/J in Cameroon. The European network on the study of in utero transmission of HIV-1. 994 Peeters, M 10438826 Characterization of a highly replicative intergroup M/O human immunodeficiency virus type 1 recombinant isolated from a Cameroonian patient. 995 Pillay, C 12036490 HIV-1 subtype C reverse transcriptase sequences from drug-naive pregnant women in South Africa. 996 Gordon, M 12551997 Molecular characteristics of human immunodeficiency virus type 1 subtype C viruses from KwaZulu-Natal, South Africa: implications for vaccine and antiretroviral control strategies. 997 Kantor, R 12512512 HIV-1 subtype C reverse transcriptase and protease genotypes in Zimbabwean patients failing antiretroviral therapy. 999 Lee EJ 16136470 Breast-milk shedding of drug-resistant HIV-1 subtype C in women exposed to single-dose nevirapine. 1003 Yang, C 10933623 Phylogenetic analysis of protease and transmembrane region of HIV type 1 group O. 1006 Carr, JK 11448170 The AG recombinant IbNG and novel strains of group M HIV-1 are common in Cameroon. 1007 Carr, JK 11600844 Diverse BF recombinants have spread widely since the introduction of HIV-1 into South America. 1008 Luk, KC 11709100 Naturally occurring sequence polymorphisms within HIV type 1 group O protease. 1009 Kane, CT 11522190 Full-length genome sequencing of HIV type 1 group O viruses isolated from a heterosexual transmission cluster in Senegal. 1013 Vidal, N 11153090 Identification of a complex env subtype E HIV type 1 virus from the Democratic Republic of Congo, recombinant with A, G, H, J, K, and unknown subtypes. 1015 Op de Coul, E 10792985 Independent introduction of transmissible F/D recombinant HIV-1 from Africa into Belgium and The Netherlands. 1018 Gao, F 11522191 Molecular characterization of a highly divergent HIV type 1 isolate obtained early in the AIDS epidemic from the Democratic Republic of Congo. 1019 Mokili, JL 12167273 Identification of a novel clade of human immunodeficiency virus type 1 in Democratic Republic of Congo. 1022 Rodes, B 12409418 Rapid assessment of phenotypic resistance to protease inhibitors in human immunodeficiency virus type 1 group O. 1023 Maxeiner, HG 11930317 Selection of zidovudine resistance mutations and escape of human immunodeficiency virus type 1 from antiretroviral pressure in stavudine-treated pediatric patients. 1024 Roge, BT 12741630 K65R with and without S68: a new resistance profile in vivo detected in most patients failing abacavir, didanosine and stavudine. 1025 Baxter, JD 10894268 A randomized study of antiretroviral management based on plasma genotypic antiretroviral resistance testing in patients failing therapy. CPCRA 046 study team for the Terry Beirn community programs for clinical research on AIDS. 1027 Gonzales, MJ 14601580 Protease and reverse transcriptase mutation patterns in HIV-1 isolates from heavily treated persons: comparison of isolates from northern California with isolates from other regions. 1030 Brindeiro, PA 12454144 Testing genotypic and phenotypic resistance in human immunodeficiency virus type 1 isolates of clade B and other clades from children failing antiretroviral therapy. 1033 Dumans, AT 12183276 Prevalence of protease and reverse transcriptase drug resistance mutations over time in drug-naive human immunodeficiency virus type 1-positive individuals in Rio de Janeiro, Brazil. 1034 Soares, MA 12478065 A specific subtype C of human immunodeficiency virus type 1 circulates in Brazil. 1035 Mo, H 17101675 Identification and structural characterization of I84C and I84A mutations that are associated with high-level resistance to HIV protease inhibitors and impair viral replication. 1045 Vidal, N 12794561 High genetic diversity of HIV-1 strains in Chad, West Central Africa. 1058 Masquelier, B 11353634 Genotypic and phenotypic resistance patterns of human immunodeficiency virus type 1 variants with insertions or deletions in the reverse transcriptase (RT): multicenter study of patients treated with RT inhibitors. 1059 Njouom, R 12757914 Assessment of HIV-1 subtyping for Cameroom strains using phylogenetic analysis of pol gene sequences. 1060 Megede, JZ 12487821 Novel evolutionary analyses of full-length HIV type 1 subtype C molecular clones from Cape Town, South Africa. 1061 Sutthent, R 12126721 Effect of perinatal short-course zidovudine on the clinical and virological manifestations of HIV-1 subtype E infection in infants. 1062 Kagan, RM 15937277 Structural analysis of an HIV-1 protease I47A mutant resistant to the protease inhibitor lopinavir. 1070 Saah, AJ 12660932 Treatment with indinavir, efavirenz, and adefovir after failure of nelfinavir therapy. 1071 Hierholzer, J 12487805 Molecular epidemiology of HIV type 1 in Ecuador, Peru, Bolivia, Uruguay, and Argentina. 1072 Masquelier, B 12404170 Mechanisms of early virologic failure in antiretroviral-naive patients starting protease inhibitor-containing regimens: the APROVIR study. 1073 Huang, DD 12816082 Sequence characterization of the protease and partial reverse transcriptase proteins of the NED panel, an international HIV type 1 subtype reference and standards panel. 1074 Willliamson, C 12639249 Characterization and selection of HIV-1 subtype C isolates for use in vaccine development. 1076 Barditch-Crovo, P 11557462 Phase I/II trial of the pharmacokinetics, safety, and antiretroviral activity of tenofovir disoproxil fumarate in human immunodeficiency virus-infected adults. 1082 Lan, NT 14601592 HIV type 1 isolates from 200 untreated individuals in Ho Chi Minh city(Vietnam): ANRS 1257 Study. Large predominance of CRF01_AE and presence of major resistance mutations to antiretroviral drugs. 1083 Hanna, G 14513418 Drug-selected resistance mutations and non-B subtypes in antiretroviral-naive adults with established human immunodeficiency virus infection. 1084 Brindeiro, RM 12700457 Brazilian network for HIV drug resistance surveillance (HIV-BResNet): a survey of chronically infected individuals. 1085 Toni, TD 14506786 Presence of key drug resistance mutations in isolates from untreated patients of Abidjan, Cote d'Ivoire: ANRS 1257 study. 1086 Takebe, Y 14502011 High prevalence of diverse forms of HIV-1 intersubtype recombinants in Central Myanmar: geographical hot spot of extensive recombination. 1091 Vidal, C 12553483 Genotypic and phenotypic resistance patterns in early-stage HIV-1-infected patients failing initial therapy with stavudine, didanosine and nevirapine. 1092 Monno, L 12869832 HIV-1 phenotypic susceptibility to lopinavir(LPV) and genotypic analysis in LPV/r-Naive subjects with prior protease inhibitor experience. 1093 Monno, L 12629636 Mutational patterns of paired blood and rectal biopsies in HIV-infected patients on HAART. 1095 Park, SW 14686324 Genotypic resistance of antiretroviral drugs among drug-naive HIV type 1 patients with the background of long-term access-easy zidovudine therapy. 1096 Venturi, G 12553478 Divergent distribution of HIV-1 drug-resistant variants on and off antiretroviral therapy. 1098 Zhong, P 14717120 Genetic and biological properties of HIV type 1 isolates prevalent in villagers of the Cameroon equatorial rain forests and grass fields: further evidence of broad HIV type 1 genetic diversity. 1100 Konings, FAJ 15008125 Protease mutations in HIV-1 non-B strains infecting drug-naive villagers of Cameroon. 1101 Jorgensen, LB 14723353 Prevalence of drug resistance mutations and non-B subtypes in newly diagnosed HIV-1 patients in Denmark. 1108 Deshpande, A 15585093 Molecular characterization of HIV type 1 isolates from untreated patients of Mumbai (Bombay), India, and detection of rare resistance mutations. 1110 Tural, C 11807305 Clinical utility of HIV-1 genotyping and expert advice: the Havana trial. 1111 Servais, J 15117451 HIV type 1 pol gene diversity and archived nevirapine resistance mutation in pregnant women in Rwanda. 1112 Richard, N 15157354 High prevalence of antiretroviral resistance in treated Ugandans infected with non-subtype B human immunodeficiency virus type 1. 1113 Vaughan, HE 14601595 Characterization of HIV type 1 clades in the Caribbean using pol gene sequences. 1116 Eshleman, SH 14722443 Characterization of nevirapine resistance mutations in women with subtype A vs. D HIV-1 6-8 weeks after single-dose nevirapine. 1117 Perno, CF 11808755 Impact of mutations conferring reduced susceptibility to lamivudine(3TC) on the response to antiretroviral therapy. 1118 Maljkovic, I 14678606 Limited transmission of drug-resistant HIV type 1 in 100 Swedish newly detected and drug-naive patients infected with subtypes A, B, C, D, G, U, and CRF01_AE. 1121 Yang, C 15186532 Genetic diversity and high proportion of intersubtype recombinants among HIV type 1-infected pregnant women in Kisumu, western Kenya. 1122 Tovanabutra, S 15186520 The changing molecular epidemiology of HIV type 1 among northern Thai drug users, 1999 to 2002. 1123 Kuritzkes, DR 15097303 Rate of thymidine analogue resistance mutation accumulation with zidovudine- or stavudine-based regimens. 1124 Parreira, R 15362671 Natural polymorphism of HIV-1 subtype G protease and cleavage sites. 1125 Montes, B 15097148 Comparison of drug resistance mutations and their interpretation in patients infected with non-B HIV-1 variants and matched patients infected with HIV-1 subtype B. 1127 Grossman, Z 15155216 Mutation D30N is not preferentially selected by human immunodeficiency virus type 1 subtype C in the development of resistance to nelfinavir. 1128 Apetrei, C 14714572 HIV type 1 diversity in northeastern Romania in 2000-2001 based on phylogenetic analysis of pol sequences from patients failing antiretroviral therapy. 1129 Gonzales, MJ 14615657 Colinearity of reverse transcriptase inhibitor resistance mutations detected by population-based sequencing. 1130 Mueller, SM Susceptibility to saquinavir and atazanavir in highly protease inhibitor(PI) resistant HIV-1 is caused by lopinavir-induced drug resistance mutation L76V. 1132 Vergne, L 14565607 Low rate of genotypic HIV-1 drug-resistant strains in the Senegalese government initiative of access to antiretroviral therapy. 1134 Delgado, J Genotypic (and phenotypic) predictors of a response to DDI monotherapy in ZDV-experienced patients. 1137 Eshleman, SH 15242535 Comparison of nevirapine (NVP) resistance in Ugandan women 7 days vs. 6-8 weeks after single-dose nvp prophylaxis: HIVNET 012. 1138 Konings, FAJ 15242545 V118I substitution in the reverse transcriptase gene of HIV type 1 CRF02_AG strains infecting drug-naive individuals in Cameroon. 1142 Fang, G 15272396 Long-term survivors in Nairobi: complete HIV-1 RNA sequences and immunogenetic associations. 1143 Hierholzer, M 12402957 HIV type 1 strains from east and west Africa are intermixed in Sudan. 1144 Eshleman, SH 15184457 Performance of the Celera Diagnostics ViroSeq HIV-1 Genotyping System for sequence-based analysis of diverse human immunodeficiency virus type 1 strains. 1145 Kaye, S 12008783 Observations of HIV-1 genotypic drug resistance in a trial of four reverse transcriptase inhibitors (Quattro Trial). 1146 Eshleman, SH 12439209 Survival of Ugandan infants with subtype A and D HIV-1 infection (HIVNET 012). 1147 Yamaguchi, J 14678605 Near full-length genomes of 15 HIV type 1 group O isolates. 1148 Murphy, MD 15072756 HIV protease mutations associated with amprenavir resistance during salvage therapy: importance of I54M. 1151 Friend, J 15353986 Isolated lopinavir resistance after virological rebound of a ritonavir/lopinavir-based regimen. 1153 Rhee, SY 15273130 Distribution of human immunodeficiency virus type 1 protease and reverse transcriptase mutation patterns in 4,183 persons undergoing genotypic resistance testing. 1154 Shang, H 17411368 Genotypic resistance mutation to antiretroviral drugs in treatment-naive HIV/AIDS patients in the northeast of China. 1155 Holguin, A 15465415 Impact of frequent natural polymorphisms at the protease gene on the in vitro susceptibility to protease inhibitors in HIV-1 non-B subtypes. 1156 Cinque, P 11282006 Effect of genotypic resistance on the virological response to highly active antiretroviral therapy in cerebrospinal fluid. 1157 Machado, ES 15558153 Overview of genotypic and clinical profiles of human immunodeficiency virus type 1-infected children in Rio de Janeiro, Brazil. 1158 Clevenbergh, P 12553486 Long-term virological outcome in patients infected with multi-nucleoside analogue-resistant HIV-1. 1159 Bodelle, P 15320995 Identification and genomic sequence of an HIV type 1 group N isolate from Cameroon. 1160 de Sa Filho, DJ 12957189 Analysis of the protease sequences of HIV-1 infected individuals after indinavir monotherapy. 1161 Roudinskii, NI 15452247 Diversity of human immunodeficiency virus type 1 subtype A and CRF03_AB protease in Eastern Europe: selection of the V77I variant and its rapid spread in injecting drug user populations. 1162 McCutchan, FE 15320986 HIV type 1 circulating recombinant form CRF09_cpx from west Africa combines subtypes A, F, G, and may share ancestors with CRF02_AG and Z321. 1163 Soares, EA 14657764 Epidemiologic and molecular characterization of human immunodeficiency virus type 1 in southern Brazil. 1164 Machado, ES 15072750 Genotypic resistance and HIV-1 subtype in Brazilian children on dual and triple combination therapy. 1166 Winters, MA 11044115 Genotypic, phenotypic, and modeling studies of a deletion in the beta3-beta4 region of the human immunodeficiency virus type 1 reverse transcriptase gene that is associated with resistance to nucleoside reverse transcriptase inhibitors. 1167 Rhee, SY 15995959 HIV-1 Protease and Reverse Transcriptase Mutations: Correlations with Antiretroviral Therapy in Subtype B Isolates and Implications for Drug-Resistance Surveillance. 1170 Bouchard, M 17411383 HIV type 1 drug resistance among naive patients from Venezuela. 1171 Albrecht, MA 11496850 Nelfinavir, efavirenz, or both after the failure of nucleoside treatment of HIV infection.AIDS Clinical Trials Group 364 Study Team. 1172 Dumans, AT 15031792 Synonymous genetic polymorphisms within Brazilian human immunodeficiency virus Type 1 subtypes may influence mutational routes to drug resistance. 1173 Thomson, MM 15585105 Analysis of near full-length genome sequences of HIV type 1 BF intersubtype recombinant viruses from Brazil reveals their independent origins and their lack of relationship to CRF12_BF. 1174 Hammer, SM 9287227 A controlled trial of two nucleoside analogues plus indinavir in persons with human immunodeficiency virus infection and CD4 cell counts of 200 per cubic millimeter or less. AIDS Clinical Trials Group 320 Study Team. 1178 Bessong, PO 15665650 Characterization of human immunodeficiency virus type 1 from a previously unexplored region of South Africa with a high HIV prevalence. 1179 Kinomoto, M 15983923 HIV-1 proteases from drug-naive West African patients are differentially less susceptible to protease inhibitors. 1180 Eshleman, SH 15665648 Limited evolution in the HIV type 1 pol region among acute seroconverters in Pune, India. 1181 Non-B Workgroup 15839752 Impact of HIV-1 subtype and antiretroviral therapy on protease and reverse transcriptase genotype: Results of a global collaboration. 1182 Snoeck, J 15076243 Rising prevalence of HIV-1 non-B subtypes in Belgium: 1983-2001. 1183 Podzamczer, D 15751775 Early virological failure with a combination of tenofovir, didanosine and efavirenz. 1184 Bussmann, H 15889533 HIV-1 subtype C drug-resistance background among ARV-naive adults in Botswana. 1185 Johnston, E 12805470 High frequency of syncytium-inducing and CXCR4-tropic viruses among human immunodeficiency virus type 1 subtype C-infected patients receiving antiretroviral treatment. 1195 Rey, D 17057610 Virologic response of zidovudine, lamivudine, and tenofovir disoproxil fumarate combination in antiretroviral-naive HIV-1-infected patients. 1197 Weber, J 15750116 Diminished replicative fitness of primary human immunodeficiency virus type 1 isolates harboring the K65R mutation. 1202 Coakley, E Atazanavir resistance in a protease inhibitor-naive patient treated with atazanavir/ritonavir associated with development of high-level atazanavir resistance and the N88S mutation in protease. 1209 Tee, KK 15668536 Emergence of HIV-1 CRF01_AE/B unique recombinant forms in Kuala Lumpur, Malaysia. 1210 Mo, H 15731227 Selection of resistance in protease inhibitor-experienced, human immunodeficiency virus type 1-infected subjects failing lopinavir- and ritonavir-based therapy: mutation patterns and baseline correlates. 1211 Balakrishnan, P 15943572 HIV type 1 genotypic variation in an antiretroviral treatment-naive population in southern India. 1213 Yerly, S 11443566 Nosocomial outbreak of multiple bloodborne viral infections. 1214 Carr, JK 16044009 Outbreak of west african recombinant of HIV-1 in Tashkent, Uzbekistan. 1215 Carr, JK HIV subtype and drug resistance patterns among drug-naive infected persons in Jos, Nigeria. 1216 Qiu, Z 16379609 Characterization of five nearly full-length genomes of early HIV type 1 strains in Ruili city: implications for the genesis of CRF07_BC and CRF08_BC circulating in China. 1217 Tovanabutra, S 15929707 Characterization of complete HIV type 1 genomes from non-B subtype infections in U.S. military personnel. 1218 Eshleman, SH 15942891 Nevirapine (NVP) resistance in women with HIV-1 subtype C, compared with subtypes A and D, after the administration of single-dose NVP. 1226 Paraskevis, D 16022906 Prevalence of resistance-associated mutations in newly diagnosed HIV-1 patients in Greece. 1229 Rodes, B 16060830 Treatment response and drug resistance in patients infected with HIV type 1 group O viruses. 1230 Sandstrom, P Sequences from untreated patients circa 1984. 1232 Petch, LA 16218804 Genotypic analysis of the protease and reverse transcriptase of HIV type 1 subtype C isolates from antiretroviral drug-naive adults in Malawi. 1234 Brown, BK 15857994 Biologic and genetic characterization of a panel of 60 human immunodeficiency virus type 1 isolates, representing clades A, B, C, D, CRF01_AE, and CRF02_AG, for the development and assessment of candidate vaccines. 1235 Pandrea, I 12396449 Analysis of partial pol and env sequences indicates a high prevalence of HIV type 1 recombinant strains circulating in Gabon. 1236 Gonzalez, P Epidemiological and molecular characteristics of HIV and HTLV infection in Equatorial Guinea, 1996-1998. 1237 K'Aluoch, OF Characterization of HIV-1 subtypes and recombinants in a Uganda cohort by use of the gag, nef and pol genes. 1238 Ly, N 16386116 Characterization of mutations in HIV type 1 isolates from 144 Cambodian recently infected patients and pregnant women naive to antiretroviral drugs. 1239 Saad, MD 16060835 HIV type 1 strains common in Europe, Africa, and Asia co-circulate in Yemen. 1240 Babic, DZ 16417938 Prevalence of antiretroviral drug resistance mutations and HIV-1 non-B subtypes in newly diagnosed drug-naive patients in Slovenia, 2000-2004. 1241 Murphy, RL 10068575 Treatment with amprenavir alone or amprenavir with zidovudine and lamivudine in adults with human immunodeficiency virus infection. AIDS Clinical Trials Group 347 Study Team. 1242 Garcia-Bujalance, S 16081972 Comparison between sequence analysis and a line probe assay for testing genotypic resistance of human immunodeficiency virus type 1 to antiretroviral drugs. 1243 Delaunay, C 16014919 Comparative selection of the K65R and M184V/I mutations in human immunodeficiency virus type 1-infected patients enrolled in a trial of first-line triple-nucleoside analog therapy (Tonus IMEA 021). 1248 Rodrigues, R 16332398 Low prevalence of primary antiretroviral resistance mutations and predominance of HIV-1 clade C at polymerase gene in newly diagnosed individuals from south Brazil. 1249 Gibb, DM 12553485 Evolution of antiretroviral phenotypic and genotypic drug resistance in antiretroviral-naive HIV-1-infected children treated with abacavir/lamivudine, zidovudine/lamivudine or abacavir/zidovudine, with or without nelfinavir (the PENTA 5 trial). 1250 Gallant, JE 16267763 Early virologic non-response to tenofovir, abacavir, and lamivudine in HIV-infected antiretroviral naive subjects. 1251 Vidal, N 16478404 HIV type 1 pol gene diversity and antiretroviral drug resistance mutations in the Democratic Republic of Congo (DRC). 1268 Petroni, A 16773027 Update on primary HIV-1 resistance in Argentina: emergence of mutations conferring high-level resistance to nonnucleoside reverse transcriptase inhibitors in drug-naive patients. 1269 Ojesina, AI 16910833 Subtype-specific patterns in HIV type 1 reverse transcriptase and protease in Oyo State, Nigeria: implications for drug resistance and host response. 1271 Razafindratsimandresy, R 16796535 High HIV type 1 subtype diversity and few drug resistance mutations among seropositive people detected during the 2005 second generation HIV surveillance in Madagascar. 1272 Saad, MD 16910825 Molecular epidemiology of HIV type 1 in Ukraine: birthplace of an epidemic. 1273 Vessiere, A 16639353 HIV-1 pol gene polymorphism and antiretroviral resistance mutations in drug-naive pregnant women in Yaounde, Cameroon. 1274 Zarandia, M 16706626 HIV-1 genetic diversity and genotypic drug susceptibility in the Republic of Georgia. 1276 Koizumi, Y 16885781 Emergence of antiretroviral therapy resistance-associated primary mutations among drug-naive HIV-1-infected individuals in rural western Cameroon. 1277 Saad, MD 16910836 Genetic forms of HIV Type 1 in the former Soviet Union dominate the epidemic in Azerbaijan. 1278 Vergne, L 16563858 Natural polymorphism in protease and reverse transcriptase genes and in vitro antiretroviral drug susceptibilities of non-B HIV-1 strains from treatment-naive patients. 1280 Rousseau, CM 16701907 Large-scale amplification, cloning and sequencing of near full-length HIV-1 subtype C genomes. 1281 Katzenstein, DA 11177402 Virologic and CD4 cell response to zidovudine or zidovudine and lamivudine following didanosine treatment of human immunodeficiency virus infection. 1282 Katzenstein, DA 10933617 Virologic and CD4+ cell responses to new nucleoside regimens: switching to stavudine or adding lamivudine after prolonged zidovudine treatment of human immunodeficiency virus infection. ACTG 302 Study Team. AIDS Clinical Trials Group. 1284 Albrecht, M 11018853 Effect of lamivudine in HIV-infected persons with prior exposure to zidovudine/didanosine or zidovudine/zalcitabine. 1285 Rhee, SY 17065321 Genotypic predictors of human immunodeficiency virus type 1 drug resistance. 1286 Ravuri, SK Primary drug resistance studies by genotypic analysis in HIV-1 Indian subtype C-infected individuals. 1287 Tsuiji, K V118 mutations in the transcriptase gene of HIV-1 from drug-naive hemophiliac patients in Japan. 1290 Hsu, LY 15608517 Characterization of mutations in CRF01_AE virus isolates from antiretroviral treatment naive and experienced patients in Singapore. 1291 Gittens, MV 12816080 The molecular epidemiology and drug resistance determination of HIV type 1 subtype B infection in Barbados. 1293 Ciccozzi, M 15995961 Molecular diversity of HIV in Albania. 1294 Valle-Bahena, OM 17045121 Frequency of protease and reverse transcriptase drug resistance mutations in naive HIV-infected patients. 1295 Bessong, PO 17209775 Resistance mutational analysis of HIV type 1 subtype C among rural South African drug-naive patients prior to large-scale availability of antiretrovirals. 1296 Marechal, V 17067275 Increasing HIV type 1 polymorphic diversity but no resistance to antiretroviral drugs in untreated patients from Central African Republic: a 2005 study. 1300 Pando, MA 16959032 First report of an HIV-1 triple recombinant of subtypes B, C and F in Buenos Aires, Argentina. 1302 Tovanabutra, S 12908933 A new circulating recombinant form, CRF15_01B, reinforces the linkage between IDU and heterosexual epidemics in Thailand. 1304 Watanaveeradej, V 16910837 Molecular epidemiology of HIV type 1 in preparation for a phase III prime-boost vaccine trial in Thailand and a new approach to HIV type 1 genotyping. 1305 Swanson, PA 12921095 Molecular characterization of 39 HIV-1 isolates representing group M (subtypes A-G) and group O: sequence analysis of gag p24, pol integrase, and env gp41. 1306 Sierra, M 17356464 Identification of 3 phylogenetically related HIV-1 BG intersubtype circulating recombinant forms in Cuba. 1309 Arroyo, MA 15320994 HIV type 1 subtypes among blood donors in the Mbeya region of southwest Tanzania. 1315 Visawapoka, U 16831094 Circulating and unique recombinant forms of HIV Type 1 containing subsubtype A2. 1316 Vinoles, J 15827294 Seroincidence and phylogeny of human immunodeficiency virus infections in a cohort of commercial sex workers in Montevideo, Uruguay. 1320 Sanabani, S 16522378 Analysis of the near full length genomes of HIV-1 subtypes B, F and BF recombinant from a cohort of 14 patients in Sao Paulo, Brazil. 1321 Arroyo, MA 16135906 HIV-1 diversity and prevalence differ between urban and rural areas in the Mbeya region of Tanzania. 1322 Ramos, A 13678469 New HIV type 1 CRF01_AE/B recombinants displaying unique distribution of breakpoints from incident infections among injecting drug users in Thailand. 1323 Masharsky, AE 14601597 Molecular cloning and analysis of full-length genome of HIV type 1 strains prevalent in countries of the former Soviet Union. 1324 Toni, T 16060839 Presence of CRF09_cpx and complex CRF02_AG/CRF09_cpx recombinant HIV type 1 strains in Cote d'Ivoire, West Africa. 1325 Thomson, MM 11752707 Diversity of mosaic structures and common ancestry of human immunodeficiency virus type 1 BF intersubtype recombinant viruses from Argentina revealed by analysis of near full-length genome sequences. 1326 Couto-Fernandez, JC 16478405 Phylogenetic analysis of Brazilian HIV type 1 subtype D strains: tracing the origin of this subtype in Brazil. 1328 Carrion, G 15585091 Documentation of subtype C HIV Type 1 strains in Argentina, Paraguay, and Uruguay. 1330 Harris, ME 14709249 A cluster of HIV type 1 subtype C sequences from Ethiopia, observed in full genome analysis, is not sustained in subgenomic regions. 1335 Wilbe, K 14599796 Characterization of novel recombinant HIV-1 genomes using the branching index. 1336 Liu, L 16280709 Genetic characterization of full-length HIV type 1 genomes from 3 infected paid blood donors in Henan, China. 1338 Sierra, M 15737911 The analysis of near full-length genome sequences of human immunodeficiency virus type 1 BF intersubtype recombinant viruses from Chile, Venezuela and Spain reveals their relationship to diverse lineages of recombinant viruses related to CRF12_BF. 1341 Mamadou, S 12596728 Emergence of complex and diverse CRF02-AG/CRF06-cpx recombinant HIV type 1 strains in Niger, West Africa. 1342 Meloni, ST 15507630 Distinct human immunodeficiency virus type 1 subtype A virus circulating in West Africa: sub-subtype A3. 1348 Reinke, R 11399954 Natural selection results in conservation of HIV-1 integrase activity despite sequence variability. 1349 Su, B 14600524 HIV-1 subtype B' dictates the AIDS epidemic among paid blood donors in the Henan and Hubei provinces of China. 1350 Thomson, M Full-length recombinant form CRF18_cpx; isolated in Cuba in 1999. 1353 Adojaan, M 16044014 Predominance of a rare type of HIV-1 in Estonia. 1357 Montavon, C 10866228 Most env and gag subtype A HIV-1 viruses circulating in West and West Central Africa are similar to the prototype AG recombinant virus IBNG. 1358 Viputtijul, K 12494923 Heterosexually acquired CRF01_AE/B recombinant HIV type 1 found in Thailand. 1360 Aulicino, PC 16225418 Sequence analysis of a south American HIV type 1 BC recombinant. 1362 Yamaguchi, J 16706623 HIV-1 group N: evidence of ongoing transmission in Cameroon. 1365 Swanson, P 14506784 Full-length sequence analysis of HIV-1 isolate CM237: a CRF01_AE/B intersubtype recombinant from Thailand. 1368 Carr, JK High genetic complexity of HIV-1 in low-prevalence, rural regions of Cameroon. 1376 Carrion, G 12816083 Circulating recombinant form CRF02_AG in south America. 1381 McClutchan, FE 12402948 Precise mapping of recombination breakpoints suggests a common parent of two BC recombinant HIV type 1 strains circulating in China. 1382 Roques, P 15199313 Phylogenetic characteristics of three new HIV-1 N strains and implications for the origin of group N. 1383 Yamaguchi, J 16438650 Identification of HIV type 1 group N infections in a husband and wife in Cameroon: viral genome sequences provide evidence for horizontal transmission. 1386 Tatsumi, M Infectious DNA clones of subtype G and CRF02_AG HIV-1 derived from Ghananian isolates. 1389 Burns, CC 12396455 Sequence variability of the integrase protein from a diverse collection of HIV type 1 isolates representing several subtypes. 1390 Skinner, LM 9768617 Analysis of a large collection of natural HIV-1 integrase sequences, including those from long-term nonprogressors. 1393 Sanabani, S 16478399 Full-length genome analysis of human immunodeficiency virus type 1 subtype C in Brazil. 1398 de Sa Filho, DJ 15725753 Analysis of full-length human immunodeficiency virus type 1 genome reveals a variable spectrum of subtypes B and f recombinants in Sao Paulo, Brazil. 1405 Gao, F 11429108 Evidence of two distinct subsubtypes within the HIV-1 subtype A radiation. 1407 Galkin, AN Sequencing and analysis of full-length HIV-1 CRF06_cpx isolate from Russia. 1411 Bernardin, F 16103205 Human immunodeficiency virus mutations during the first month of infection are preferentially found in known cytotoxic T-lymphocyte epitopes. 1415 Neilson, JR 10196337 Subtypes of human immunodeficiency virus type 1 and disease stage among women in Nairobi, Kenya. 1417 Harris, B 16060837 Genomic characterization of a novel HIV type 1 B/G intersubtype recombinant strain from an injecting drug user in Germany. 1424 Koulinska, IN 12230937 Common genetic arrangements among human immunodeficiency virus type 1 subtype A and D recombinant genomes vertically transmitted in Tanzania. 1425 Huang, HL 17042975 Genetic characterization of three CRF01_AE full-length HIV type 1 sequences from Fujian province, China. 1430 McLaughlin, S Sequence diversity of HIV-1 genomes from the HIV vaccine trials network. 1433 Papathanasopoulos, MA 14686322 Full-length genome characterization of HIV type 1 subtype C isolates from two slow-progressing perinatally infected siblings in South Africa. 1434 Rodriguez, MA 16289184 Construction and characterization of an infectious molecular clone of HIV-1 subtype A of Indian origin. 1440 Hunt, GM 12680693 Characterization of near-full length genome sequences of three South African human immunodeficiency virus type 1 subtype C isolates. 1447 Holzmayer, V 15929705 Near-full-length genomic sequence of a human immunodeficiency type 1 subtype g strain from Cameroon. 1448 Paraskevis, D 10875610 Molecular characterization of a recombinant HIV type 1 isolate (A/G/E/?): unidentified regions may be derived from parental subtype E sequences. 1451 Casado, G 14506788 Near full-length genome characterization of an HIV type 1 CRF05_DF virus from Spain. 1454 Tovanabutra, S 11399992 First CRF01_AE/B recombinant of HIV-1 is found in Thailand. 1456 Paraskevis, D 11562543 Molecular characterization of a complex, recombinant human immunodeficiency virus type 1 (HIV-1) isolate (A/G/J/K/?): evidence to support the existence of a novel HIV-1 subtype. 1457 Shi, B 15585089 Construction of an infectious HIV type 1 molecular clone from an African patient with a subtype D/C recombinant virus. 1459 Hai-Long, H 17451347 Genetic characterization of CRF01_AE full-length human immunodeficiency virus type 1 sequences from Fujian, China. 1465 van der Hoek, L 17411380 Characterization of an HIV-1 group M variant that is distinct from the known subtypes. 1466 Santos, AF 17053347 Characterization of a new circulating recombinant form comprising HIV-1 subtypes C and B in southern Brazil. 1469 Li, B 17065207 Rapid reversion of sequence polymorphisms dominates early human immunodeficiency virus type 1 evolution. 1475 Aulicino, PC 15725755 Circulation of novel HIV type 1 A, B/C, and F subtypes in Argentina. 1478 Galkin, AN 17147510 Full-length genomic sequencing and analysis of four HIV type 1 subtype B isolates circulating in the territory of Russia. 1479 Laurent, C 16707062 Antiretroviral drug resistance and routine therapy, Cameroon. 1480 Tee, KK 16404607 Prevalence and pattern of drug resistance mutations among antiretroviral-treated HIV-1 patients with suboptimal virological response in Malaysia. 1482 Vidal, N 17263648 HIV type 1 diversity and antiretroviral drug resistance mutations in Burundi. 1483 Sung, H 11709099 Phylogenetic analysis of reverse transcriptase in antiretroviral drug-naive Korean HIV type 1 patients. 1485 Baxter, JD 16928764 Genotypic changes in human immunodeficiency virus type 1 protease associated with reduced susceptibility and virologic response to the protease inhibitor tipranavir. 1490 Ndongmo, CB 16910839 HIV genetic diversity in Cameroon: possible public health importance. 1491 Torti, C 16038476 Early virological failure after tenofovir + didanosine + efavirenz combination in HIV-positive patients upon starting antiretroviral therapy. 1492 Doualla-Bell, F 16723586 Impact of human immunodeficiency virus type 1 subtype C on drug resistance mutations in patients from Botswana failing a nelfinavir-containing regimen. 1493 Lama, JR 16773026 Linking HIV and antiretroviral drug resistance surveillance in Peru: a model for a third-generation HIV sentinel surveillance. 1494 Doualla-Bell, F 17015626 High prevalence of the K65R mutation in human immunodeficiency virus type 1 subtype C isolates from infected patients in Botswana treated with didanosine-based regimens. 1495 Ochoa de Echaguen, A 16103769 Genotypic and phenotypic resistance patterns at virological failure in a simplification trial with nevirapine, efavirenz or abacavir. 1496 Kassu, A 17451346 Molecular epidemiology of HIV-1 in treatment-naive patients in north Ethiopia. 1500 Seoighe, C 17272680 A model of directional selection applied to the evolution of drug resistance in HIV-1. 1501 Tee, KK 16379608 The evolving molecular epidemiology of HIV type 1 among injecting drug users (IDUs) in Malaysia. 1502 Derache, A 17503757 Genetic diversity and drug resistance mutations in HIV type 1 from untreated patients in Bamako, Mali. 1503 Vidal, N 16478401 Identification and molecular characterization of subsubtype A4 in central Africa. 1504 Kurle, SN 17530993 Emergence of NNRTI drug resistance mutations after single-dose nevirapine exposure in hiv type 1 subtype C infected infants in India. 1505 Rios, M 17457921 Antiretroviral drug resistance and phylogenetic diversity of HIV-1 in Chile. 1506 Han, X 17411368 Genotypic resistance mutations to antiretroviral drugs in treatment-naive HIV/AIDS patients living in Liaoning Province, China: baseline prevalence and subtype-specific difference. 1507 Badreddine, S 17530991 Identification and characterization of hiv type 1 subtypes present in the Kingdom of Saudi Arabia: high level of genetic diversity found. 1508 Lwembe, R 17516531 Anti-retroviral drug resistance-associated mutations among non-subtype B HIV-1-infected Kenyan children with treatment failure. 1510 Vicenti, I 17516412 Use of peripheral blood DNA for genotype antiretroviral resistance testing in drug-naive HIV-infected subjects. 1511 Holguin, A 12815558 HIV-positive immigrants in the Canary Islands, Spain: implications for public health in Europe. 1512 Holguin, A 15648070 Heterogeneous nature of HIV-1 recombinants spreading in Spain. 1513 McGrath, D Antiviral efficacy and emergent PI substitutions in treatment-naive subjects receiving atazanavir +/- ritonavir-based HAART in subtype b and non-type b HIV-1 infection. 1514 Zolopa, A Resistance profile after viral rebound on atazanavir-containing therapy: focus on protease inhibitor naive subjects in the IMPACT study (BMS AI424-128). 1515 Seyler, C 17502726 Impact of genotypic drug resistance mutations on clinical and immunological outcomes in HIV-infected adults on HAART in West Africa. 1523 Lataillade, M 17668566 Natural polymorphism of the HIV-1 integrase gene and mutations associated with integrase inhibitor resistance. 1526 Warachit, J 17336569 Aberrant life cycle of human immunodeficiency virus type 1 CRF15_01B-like clinical isolates from Thailand in human CD4+ T-cell lines. 1530 Montavon, C 11981370 CRF06-cpx: a new circulating recombinant form of HIV-1 in West Africa involving subtypes A, G, K, and J. 1531 Delgado, E 11981372 Identification of a newly characterized HIV-1 BG intersubtype circulating recombinant form in Galicia, Spain, which exhibits a pseudotype-like virion structure. 1535 Sanchez, GI 16607004 Molecular epidemiology of human immunodeficiency virus-infected individuals in Medellin, Colombia. 1537 Novitsky, V 17678469 The reverse transcriptase 67N 70R 215Y genotype is the predominant TAM pathway associated with virologic failure among HIV type 1C-infected adults treated with ZDV/ddI-containing HAART in Southern Africa. 1540 Sagoe, KW 17827059 Variability of the human immunodeficiency virus type 1 polymerase gene from treatment naive patients in Accra, Ghana. 1541 Liao, L 17725425 genotypic analysis of the protease and reverse transcriptase of HIV type 1 isolates from recently infected injecting drug users in western China. 1542 Bradshaw, D 17876005 Characterization of a novel drug-resistance pattern associated with the mutations K70G and M184V in HIV-1 reverse transcriptase. 1546 Eyzaguirre, LM 17514018 Genetic characterization of hiv-1 strains circulating in Kazakhstan. 1548 Luk, KC 17331036 Near full-length genome characterization of three additional HIV type 1 CRF13_cpx strains from Cameroon. 1549 Powell, RL 17725418 Identification of a novel circulating recombinant form (CRF) 36_cpx in Cameroon that combines two CRFs (01_AE and 02_AG) with ancestral lineages of subtypes A and G. 1550 Powell, RL 17678477 Circulating recombinant form (CRF) 37_cpx: an old strain in Cameroon composed of diverse, genetically distant lineages of subtypes A and G. 1551 Sanders-Buell, E 17604548 A nascent HIV type 1 epidemic among injecting drug users in Kabul, Afghanistan is dominated by complex AD recombinant strain, CRF35_AD. 1553 Watanaveeradej, V 14502024 Subtype C/CRF01_AE recombinant HIV-1 found in Thailand. 1555 Yamaguchi, J 11860674 Evaluation of HIV type 1 group O isolates: identification of five phylogenetic clusters. 1556 Lin, YT 17396997 Molecular epidemiology of HIV-1 infection and full-length genomic analysis of circulating recombinant form 07_BC strains from injection drug users in Taiwan. 1558 Yamaguchi, J 15585082 HIV infections in northwestern Cameroon: identification of HIV type 1 group O and dual HIV type 1 group M and group O infections. 1560 Tee, KK 17031320 Identification of a novel circulating recombinant form (CRF33_01B) disseminating widely among various risk populations in Kuala Lumpur, Malaysia. 1561 Njai, HF 16817969 The predominance of human immunodeficiency virus type 1 (HIV-1) circulating recombinant form 02 (CRF02_AG) in West Central Africa may be related to its replicative fitness. 1563 Yang, R 12477871 Identification and characterization of a new class of human immunodeficiency virus type 1 recombinants comprised of two circulating recombinant forms, CRF07_BC and CRF08_BC, in China. 1564 Kijak, GH 15186527 Development and application of a high-throughput HIV type 1 genotyping assay to identify CRF02_AG in West/West Central Africa. 1565 Casado, G 16284528 Identification of a novel HIV-1 circulating ADG intersubtype recombinant form (CRF19_cpx) in Cuba. 1566 de Sa Filho, DJ 16438639 Identification of two HIV type 1 circulating recombinant forms in Brazil. 1567 Thomson, MM 15990568 Identification of a novel HIV-1 complex circulating recombinant form (CRF18_cpx) of Central African origin in Cuba. 1568 Tovanabutra, S 17604547 Identification of CRF34_01B, a second circulating recombinant form unrelated to and more complex than CRF15_01B, among injecting drug users in northern Thailand. 1570 Soundararajan, L 17919107 Characterization of HIV-1 isolates from antiretroviral drug-naive children in southern India. 1572 Wilbe, K 12201907 Identification of two CRF11-cpx genomes and two preliminary representatives of a new circulating recombinant form (CRF13-cpx) of HIV type 1 in Cameroon. 1573 Shafer, RW 14668456 Comparison of four-drug regimens and pairs of sequential three-drug regimens as initial therapy for HIV-1 infection. 1576 Razafindratsimandresy, R 17604537 HIV type 1 diversity in the Seychelles. 1580 Zhong, P 17678466 Genetic diversity and drug resistance of human immunodeficiency virus type 1 (HIV-1) strains circulating in Shanghai. 1581 Eshleman, SH 16545016 Phenotypic drug resistance patterns in subtype A HIV-1 clones with nonnucleoside reverse transcriptase resistance mutations. 1584 Sen, S 17961120 High prevalence of human immunodeficiency virus type 1 drug resistance mutations in antiretroviral treatment-experienced patients from Pune, India. 1586 Ndembi, N 17855574 Molecular characterization of human immunodeficiency virus type 1 (HIV-1) and HIV-2 in Yaounde, Cameroon: evidence of major drug resistance mutations in newly diagnosed patients infected with subtypes other than subtype B. 1588 Ojesina, AI 18160018 Characterization of HIV type 1 reverse transcriptase mutations in infants infected by mothers who received peripartum nevirapine prophylaxis in Jos, Nigeria. 1589 Martinson, NA 17117145 Selection and persistence of viral resistance in HIV-infected children after exposure to single-dose nevirapine. 1590 Ly, N 18160014 Reverse transcriptase mutations in Cambodian CRF01_AE isolates after antiretroviral prophylaxis against HIV Type 1 perinatal transmission. 1591 Lloyd, B 18366313 Prevalence of resistance mutations in HIV-1 infected Hondurans at the beginning of the national antiretroviral therapy program. 1592 Eyer-Silva, WA 17992366 Autochthonous horizontal transmission of a CRF02_AG strain revealed by a human immunodeficiency virus type 1 diversity survey in a small city in 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of drug resistance-associated mutations in newly diagnosed HIV-1 patients in Portugal. 1608 Punzi, G 16254966 HIV infection and protease genetic diversity in a rural area of the Southern Central African Republic. 1609 Van Baelen, K Low level of baseline resistance to integrase inhibitors L731,988 and L810,810 in randomly selected subtype B and non-B HIV-1 strains. 1611 Church, JD 17604538 HIV type 1 variants with nevirapine resistance mutations are rarely detected in antiretroviral drug-naive African women with subtypes A, C, and D. 1612 Ibe, S 18275342 Trend of drug-resistant HIV type 1 emergence among therapy-naive patients in Nagoya, Japan: an 8-year surveillance from 1999 to 2006. 1613 Dilernia, DA 17961105 HIV type 1 genetic diversity surveillance among newly diagnosed individuals from 2003 to 2005 in Buenos Aires, Argentina. 1614 Brennan, CA 18184087 HIV-1 strains identified in Brazilian blood donors: significant prevalence of B/F1 recombinants. 1615 Andresen, BS 18184088 Characterization of near full-length genomes of HIV type 1 strains in Denmark: basis for a universal therapeutic vaccine. 1618 Brumme, ZL 17616974 Evidence of differential HLA class I-mediated viral evolution in functional and accessory/regulatory genes of HIV-1. 1621 Toni, TD 16379606 Characterization of nevirapine (NVP) resistance mutations and HIV type 1 subtype in women from Abidjan (Cote d'Ivoire) after NVP single-dose prophylaxis of HIV type 1 mother-to-child transmission. 1622 Delaugerre, C 15722030 Selection of a rare resistance profile in an HIV-1-infected patient exhibiting a failure to an antiretroviral regimen including tenofovir DF. 1623 McNulty, A 17166967 Evaluation of dried blood spots for human immunodeficiency virus type 1 drug resistance testing. 1627 Paraschiv, S 16762582 Polymorphisms and resistance mutations in the protease and reverse transcriptase genes of HIV-1 F subtype Romanian strains. 1628 Holguin, A 16225417 Differences in the length of gag proteins among 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Buzon, MJ 19043922 Raltegravir susceptibility and fitness progression of HIV type-1 integrase in patients on long-term antiretroviral therapy. 1651 Pillay, V 19000027 HIV type 1 subtype C drug resistance among pediatric and adult South African patients failing antiretroviral therapy. 1653 Gody, JC 19202461 High prevalence of antiretroviral drug resistance mutations in HIV-1 non-B subtype strains from African children receiving antiretroviral therapy regimen according to the 2006 revised who recommendations. 1654 Delgado, E 18645511 High prevalence of unique recombinant forms of HIV-1 in Ghana: molecular epidemiology from an antiretroviral resistance study. 1655 Nukoolkarn, S 15650431 Sequence variability of the HIV type 1 protease gene in Thai patients experienced with antiretroviral therapy. 1656 Papa, A 12079565 Genetic variation of the protease and reverse transcriptase genes in HIV-1 CRF04_cpx strains. 1657 Nyombi, BM 18507522 Diversity of human immunodeficiency virus type 1 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CRF01_AE integrase derived from drug-naive Thai Patients. 1789 Espinosa, A 15097307 Intersubtype BF recombinants of HIV-1 in a population of injecting drug users in Argentina. 1790 Rhee, SY 20660676 HIV-1 protease mutations and protease inhibitor cross resistance. 1791 Ragonnet-Cronin, M 20622676 Longitudinal phylogenetic surveillance identifies distinct patterns of cluster dynamics. 1797 Hamers, RL 20585262 HIV-1 drug resistance mutations are present in six percent of persons initiating antiretroviral therapy in Lusaka, Zambia. 1798 Manosuthi, W 20507208 Patients infected with HIV type 1 subtype CRF01_AE and failing first-line nevirapine- and efavirenz-based regimens demonstrate considerable cross-resistance to etravirine. 1801 Soares, EA 20483657 Molecular diversity and polymerase gene genotypes of HIV-1 among treatment-naive Cameroonian subjects with advanced disease. 1802 Gomez-Carrillo, M 15320992 Drug resistance testing provides evidence of the globalization of HIV type 1: a new 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Blanco, JL HIV-1 integrase inhibitor resistance: new developments and their clinical implications. 1812 Ndembi, N 19938977 Viral rebound and emergence of drug resistance in the absence of viral load testing: a randomized comparison between zidovudine-lamivudine plus nevirapine and zidovudine-lamivudine plus abacavir. 1813 Lawrence, P 16773024 Analysis of polymorphism in the protease and reverse transcriptase genes of HIV type 1 CRF02-AG subtypes from drug-naive patients from Saint-Etienne, France. 1814 Thomson, MM 18160020 New insights into the origin of the HIV type 1 subtype A epidemic in former Soviet Union's countries derived from sequence analyses of preepidemically transmitted viruses. 1815 Steegen, K 19531211 Effectiveness of antiretroviral therapy and development of drug resistance in HIV-1 infected patients in Mombasa, Kenya. 1817 Holzmayer, V 19552591 Characterization of genetically diverse HIV type 1 from a London cohort: near full-length genomic analysis of a subtype H 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Luk, KC 18851680 Near full-length genome characterization of an HIV type 1 CRF25_cpx strain from Cameroon. 1853 Lakhashe, S 18275353 Characterization of B/C recombinants of near full-length HIV type 1 from northeastern India with mosaics identical to ARE195FL but with a different ancestral origin. 1857 Neogi, U 20836706 Naturally occurring polymorphisms and primary drug resistance profile among antiretroviral-naive individuals in Bangalore, India. 1861 Arruda, E 20929346 Intermediate prevalence of HIV type 1 primary antiretroviral resistance in Ceara State, Northeast Brazil. 1863 Avi, R 20964489 Emerging transmitted drug resistance in treatment-naive human immunodeficiency virus-1 CRF06_cpx-infected patients in Estonia. 1864 Mosha, F 20954839 Prevalence of genotypic resistance to antiretroviral drugs in treatment-naive youths infected with diverse HIV type 1 subtypes and recombinant forms in Dar es Salaam, Tanzania. 1865 Wright, JK 20702636 Gag-protease-mediated replication capacity in HIV-1 subtype C chronic infection: associations with HLA type and clinical parameters. 1866 Jullaksorn, D 20578518 Sustained appearance of drug resistance-associated mutations in HIV-1 CRF01_AE protease and reverse transcriptase derived from protease inhibitor-naive Thai patients. 1867 Zolfo, M 20854169 Genotypic impact of prolonged detectable HIV type 1 RNA viral load after HAART failure in a CRF01_AE-infected cohort. 1868 Arien, KK 16184024 Replicative fitness of historical and recent HIV-1 isolates suggests HIV-1 attenuation over time. 1872 Kandathil, AJ 19292596 A comparison of interpretation by three different HIV type 1 genotypic drug resistance algorithms using sequences from non-clade B HIV type 1 strains. 1873 Zeh, C 15665641 Nigerian HIV type 2 subtype A and B from heterotypic HIV type 1 and HIV type 2 or monotypic HIV type 2 infections. 1874 Balode, D 20981787 Low prevalence of transmitted drug resistance among newly diagnosed HIV-1 patients in Latvia. 1875 Castelbranco, EP 20929349 Frequency of primary resistance to antiretroviral drugs and genetic variability of HIV-1 among infected pregnant women recently diagnosed in Luanda-Angola. 1876 Djoko, CF 20954909 High HIV type 1 group M pol diversity and low rate of antiretroviral resistance mutations among the uniformed services in Kinshasa, DRC. 1877 Djoko, CF 20718620 HIV type 1 pol gene diversity and genotypic antiretroviral drug resistance mutations in Malabo, Equatorial Guinea. 1880 Rangel, HR 20704494 Absence of primary integrase resistance mutations in HIV type 1-infected patients in Venezuela. 1881 Towler, WI 20455758 Analysis of drug resistance in children receiving antiretroviral therapy for treatment of HIV-1 infection in Uganda. 1885 Rey, D 19036752 High rate of early virological failure with the once-daily tenofovir/lamivudine/nevirapine combination in naive HIV-1-infected patients. 1886 Bartolo, I 21969855 Origin and epidemiological history of HIV-1 CRF14_BG. 1888 Vidal, N 18257687 Characterization of an old complex circulating recombinant form, CRF27_cpx, originating from the Democratic Republic of Congo (DRC) and circulating in France. 1889 Vidal, N 19678767 Genetic characterization of eight full-length HIV type 1 genomes from the Democratic Republic of Congo (DRC) reveal a new subsubtype, A5, in the A radiation that predominates in the recombinant structure of CRF26_A5U. 1890 Yamaguchi, J 18844465 Identification of new CRF43_02G and CRF25_cpx in Saudi Arabia based on full genome sequence analysis of six HIV type 1 isolates. 1894 Delgado, E 20618101 Identification of a new HIV type 1 BF intersubtype circulating recombinant form (CRF44_BF) in Chile. 1896 Kousiappa, I 19619035 Near full-length genetic analysis of HIV sequences derived from Cyprus: evidence of a highly polyphyletic and evolving infection. 1900 de Silva, TI 20932333 HIV-1 subtype distribution in the Gambia and the significant presence of CRF49_cpx, a novel circulating recombinant form. 1901 Ng, OT 21235306 Molecular epidemiology of HIV type 1 in Singapore and identification of novel CRF01_AE/B recombinant forms. 1902 El Annaz, H 21087198 Presence of drug resistance mutations among drug-naive patients in Morocco. 1903 Carvalho, BC 21417758 Moderate prevalence of transmitted drug resistance and interiorization of HIV type 1 subtype C in the inland north state of Tocantins, Brazil. 1904 Chamberland, A 22158948 Transmission of HIV-1 drug resistance in Benin could jeopardise future treatment options. 1905 Charpentier, C 21555827 High prevalence of antiretroviral drug resistance among HIV-1-untreated patients in Guinea-Conakry and in Niger. 1906 Ndembi, N 21399479 Transmitted antiretroviral drug resistance among newly HIV-1 diagnosed young individuals in Kampala. 1907 Kasang, C 21886779 HIV drug resistance (HIVDR) in antiretroviral therapy-naive patients in Tanzania not eligible for WHO threshold HIVDR survey is dramatically high. 1908 Gulick, RM 15115831 Triple-nucleoside regimens versus efavirenz-containing regimens for the initial treatment of HIV-1 infection. 1910 Wright, JK 21289112 Influence of Gag-protease-mediated replication capacity on disease progression in individuals recently infected with HIV-1 subtype C. 1911 Hoffmann, C 19911963 Viremia, resuppression, and time to resistance in human immunodeficiency virus (HIV) subtype C during first-line antiretroviral therapy in South Africa. 1912 Bontell, I 21620998 Transmitted drug resistance and phylogenetic analysis of HIV CRF01_AE in Northern Vietnam. 1913 El-Khatib, Z 20453629 Viremia and drug resistance among HIV-1 patients on antiretroviral treatment: a cross-sectional study in Soweto, South Africa. 1914 de Medeiros, RM 21837783 Co-circulation HIV-1 subtypes B, C, and CRF31_BC in a drug-naive population from Southernmost Brazil: Analysis of primary resistance mutations. 1915 Mezei, M 21453184 Molecular Epidemiological Analysis of env and pol Sequences in Newly Diagnosed HIV Type 1-Infected, Untreated Patients in Hungary. 1917 Thorat, SR 21568760 Surveillance of Transmitted HIV Type 1 Drug Resistance Among HIV Type 1-Positive Women Attending an Antenatal Clinic in Kakinada, India. 1920 Moussa, S 20939688 First data on HIV-1 resistance mutations to antiretroviral drugs in Central African Republic. 1922 Wallis, CL 20890651 Case report of the rare deletion at codon 69 of reverse transcriptase in a South African HIV-1 subtype C infected patient. 1923 Shahid, A 21680516 HIV-1 circulating recombinant form in Nepal. 1924 Parboosing, R 21739439 Resistance to antiretroviral drugs in newly diagnosed, young treatment-naive HIV-positive pregnant women in the province of KwaZulu-Natal, South Africa. 1925 Sahbandar, IN 19621986 Current HIV type 1 molecular epidemiology profile and identification of unique recombinant forms in Jakarta, Indonesia. 1926 Kao, CF 21235402 Surveillance of HIV type 1 recent infection and molecular epidemiology among different risk behaviors between 2007 and 2009 after the HIV type 1 CRF07_BC outbreak in Taiwan. 1929 Deshpande, A 21453163 Drug Resistance Mutations in HIV Type 1 isolates from naive patients eligible for first line antiretroviral therapy in JJ Hospital, Mumbai, India. 1930 Deshpande, A 19534630 Phylogenetic analysis of HIV-1 reverse transcriptase sequences from 382 patients recruited in JJ Hospital of Mumbai, India, between 2002 and 2008. 1932 van Zyl, GU 21837793 Antiretroviral resistance patterns and factors associated with resistance in adult patients failing NNRTI-based regimens in the western cape, South Africa. 1933 Graf, T 21622023 HIV-1 genetic diversity and drug resistance among treatment naive patients from Southern Brazil: an association of HIV-1 subtypes with exposure categories. 1934 Tshabalala, M 21698125 Surveillance of transmitted antiretroviral drug resistance among HIV-1 infected women attending antenatal clinics in Chitungwiza, Zimbabwe. 1935 Ng, OT 21902588 Identification of New CRF51_01B in Singapore using full genome analysis of three HIV type 1 isolates. 1938 Brennan, CA 20576010 Expanded evaluation of blood donors in the United States for human immunodeficiency virus type 1 non-B subtypes and antiretroviral drug-resistant strains: 2005 through 2007. 1939 Riddler, SA 18480202 Class-sparing regimens for initial treatment of HIV-1 infection. 1943 Ajoge, HO 21568761 Drug resistance pattern of HIV type 1 isolates sampled in 2007 from therapy-naive pregnant women in north-central Nigeria. 1944 Chibo, D 21806486 HIV transmissions during seroconversion contribute significantly to new infections in men who have sex with men in Australia. 1945 Su, Q 21916807 HIV-1 subtypes based on the pol gene and drug resistance mutations among antiretroviral-naive patients from Guangxi, Southern China. 1947 Wang, W 18834324 Identification of subtype B, multiple circulating recombinant forms and unique recombinants of HIV type 1 in an MSM cohort in China. 1950 Kagan, RM 19474648 Additional HIV-1 mutation patterns associated with reduced phenotypic susceptibility to etravirine in clinical samples. 1951 Sigaloff, KC 21819219 Accumulation of HIV drug resistance mutations in patients failing first-line antiretroviral treatment in South Africa. 1953 Ferreira, AS 21678433 Moderate prevalence of transmitted drug resistance and high HIV-1 genetic diversity in patients from Mato Grosso State, Central Western Brazil. 1954 Matthews, PC 18596105 Central role of reverting mutations in HLA associations with human immunodeficiency virus set point. 1955 Manasa, J 22251009 Primary drug resistance in South Africa - data from 20 years of surveys. 1956 Bunupuradah, T 22024527 Etravirine and rilpivirine resistance in HIV-1 subtype CRF01_AE-infected adults failing non-nucleoside reverse transcriptase inhibitor-based regimens. 1959 Truong, HH 22046237 Sentinel surveillance of HIV-1 transmitted drug resistance, acute infection and recent infection. 1964 Yang, C Sequences from Angola, Direct submission. 1965 Bussmann, H 21034246 Prevalence of transmitted HIV drug resistance in Botswana: lessons learned from the HIVDR-Threshold Survey conducted among women presenting for routine antenatal care as part of the 2007 national sentinel survey. 1966 Yang, C HIV-1 Sequences from Kenya, Direct Submission. 1967 Kamoto, K 18575195 Surveillance of transmitted HIV drug resistance with the World Health Organization threshold survey method in Lilongwe, Malawi. 1968 Yang, C HIV-1 Sequences from Vietnam, Direct Submission. 1969 Dau, B 20130473 Connection domain mutations in treatment-experienced patients in the OPTIMA trial. 1970 Green, TN 21819257 Drug resistance and coreceptor usage in HIV Type 1 Subtype C-infected children initiating or failing highly active antiretroviral therapy in South Africa. 1971 Aghokeng, AF 21860346 Scale-up of antiretroviral treatment in sub-Saharan Africa is accompanied by increasing HIV-1 drug resistance mutations in drug-naive patients. 1972 Delwart, E 22293432 Genetic Diversity of recently acquired and prevalent HIV, hepatitis B virus, and hepatitis C virus infections in US blood donors. 1973 Hamers, RL 21802367 HIV-1 drug resistance in antiretroviral-naive individuals in sub-Saharan Africa after rollout of antiretroviral therapy: a multicentre observational study. 1974 Ye, JR 21830915 The prevalence of drug resistance mutations among treatment-naive HIV-infected individuals in Beijing, China. 1975 Zeng, P 22044422 The human immunodeficiency virus-1 genotype diversity and drug resistance mutations profile of volunteer blood donors from Chinese blood centers. 1976 Ferradini, L 21439074 High efficacy of lopinavir/r-based second-line antiretroviral treatment after 24 months of follow up at ESTHER/Calmette Hospital in Phnom Penh, Cambodia. 1977 Charpentier, C 21599597 Virological response and resistance profiles after 18 to 30 months of first- or second-/third-line antiretroviral treatment: a cross-sectional evaluation in HIV type 1-infected children living in the Central African Republic. 1978 Barber, TJ 22258921 Frequency and patterns of protease gene resistance mutations in HIV-infected patients treated with lopinavir/ritonavir as their first protease inhibitor. 1979 Fernandez-Garcia, A 22251084 The analysis of near full-length genome sequences of HIV-1 subtype A viruses from Russia supports the monophyly of major intrasubtype clusters. 1981 Youngpairoj, AS 21923557 Prevalence of drug resistance-related polymorphisms in treatment-naive individuals infected with nonsubtype B HIV type 1 in Cameroon. 1982 Nwobegahay, JM 21957668 Prevalence of antiretroviral drug resistance mutations and HIV-I subtypes among newly-diagnosed drug-naive persons visiting a voluntary testing and counselling centre in northeastern South Africa. 1983 Podzamczer, D 12212928 A randomized clinical trial comparing nelfinavir or nevirapine associated to zidovudine/lamivudine in HIV-infected naive patients (the Combine Study). 1987 Germanaud, D 19933171 Level of viral load and antiretroviral resistance after 6 months of non-nucleoside reverse transcriptase inhibitor first-line treatment in HIV-1-infected children in Mali 1988 Aghokeng, AF 21270223 High failure rate of the ViroSeq HIV-1 genotyping system for drug resistance testing in Cameroon, a country with broad HIV-1 genetic diversity 1989 Sanabani, SS 22022460 Characterization of partial and near full-length genomes of HIV-1 strains sampled from recently infected individuals in Sao Paulo, Brazil. 1990 Karlsson, A 22448246 Low prevalence of transmitted drug resistance in patients newly diagnosed with HIV-1 infection in Sweden 2003-2010. 1991 Dean, J 21366425 Prevalence of HIV type 1 antiretroviral drug resistance mutations in Vietnam: a multicenter study. 1992 Lazaro, E 22039450 Molecular characterization of HIV-1 CRF01_AE in Mekong Delta, Vietnam, and impact of T-cell epitope mutations on HLA recognition (ANRS 12159). 1993 Margot, NA 16925730 Resistance development over 144 weeks in treatment-naive patients receiving tenofovir disoproxil fumarate or stavudine with lamivudine and efavirenz in Study 903 1994 Ngo-Giang-Huong, N 22132100 Resistance patterns selected by nevirapine vs. efavirenz in HIV-infected patients failing first-line antiretroviral treatment: a bayesian analysis 1996 De Gascun, CF 22176216 Human Immunodeficiency Virus Type 1 in Ireland: Phylogenetic Evidence for Risk Group-Specific Subepidemics. 1997 Melikian, GL 22330916 Standardized comparison of the relative impacts of HIV-1 reverse transcriptase (RT) mutations on nucleoside RT inhibitor susceptibility. 1998 Yang, C 22587343 Transmitted antiretroviral drug resistance and thumb subdomain polymorphisms among newly HIV-1 diagnosed patients infected with CRF01_AE and CRF07_BC virus in Guangdong Province, China 1999 Tran, VT 22264087 No Increase of Drug-Resistant HIV Type 1 Prevalence Among Drug-Naive Individuals in Northern Vietnam. 2000 Sinha, S 22496972 Prevalence of HIV Drug Resistance Mutations in HIV Type 1 Isolates in Antiretroviral Therapy Naive Population from Northern India. 2002 Musyoki, A 22106990 Genetic Characterization of HIV Before Widespread Testing of HIV Vaccine Candidates at a Clinical Trial Site in Pretoria, South Africa. 2003 Sigaloff, KC 22149307 High Prevalence of Transmitted Antiretroviral Drug Resistance Among Newly HIV Type 1 Diagnosed Adults in Mombasa, Kenya. 2005 Hassan, A 22900472 Low prevalence of transmitted HIV-1 drug resistance amongst ARV naive adults in a rural HIV clinic in Kenya. 2008 Garrido, C 22450969 Broad phenotypic cross-resistance to elvitegravir in HIV-infected patients failing on raltegravir-containing regimens. 2009 Frange, P 22348121 Recent HIV-1 infection contributes to the viral diffusion over the French territory with a recent increasing frequency. 2010 Ssemwanga, D 22616647 Low Drug Resistance Levels among Drug-naive Individuals with Recent HIV-1 Infection in a Rural Clinical Cohort in Southwestern Uganda. 2011 Reynolds, SJ 22443282 Antiretroviral drug susceptibility among HIV-infected adults failing antiretroviral therapy in Rakai, Uganda. 2012 Fokam, J 21817951 Drug resistance among drug-naive and first-line antiretroviral treatment-failing children in Cameroon. 2013 Luebbert, J 22573849 Virological Failure and Drug Resistance in Patients on Antiretroviral Therapy After Treatment Interruption in Lilongwe, Malawi. 2015 von Wyl, V 20666602 HIV-1 reverse transcriptase connection domain mutations: dynamics of emergence and implications for success of combination antiretroviral therapy. 2016 Dagnra, AY 21663632 High prevalence of HIV-1 drug resistance among patients on first-line antiretroviral treatment in Lome, Togo. 2018 Ragonnet-Cronin, M 22693560 Adaptive evolution of HIV at HLA epitopes is associated with ethnicity in Canada 2019 Hingankar, NK 22544202 Initial virologic response and HIV drug resistance among HIV-infected individuals initiating first-line antiretroviral therapy at 2 clinics in Chennai and Mumbai, India. 2021 Ragonnet-Cronin, M 22826337 Genetic Diversity as a Marker for Timing Infection in HIV-Infected Patients: Evaluation of a 6-Month Window and Comparison With BED. 2022 Gaspareto, KV 22850992 Genetic diversity and primary resistance among HIV-1-positive patients from Maringa, Parana, Brazil. 2024 El Annaz, H 21919803 Drug resistance mutations in HIV type 1 isolates from patients failing antiretroviral therapy in Morocco. 2027 Lee, GQ 23049972 Prolonged and Substantial Discordance in Prevalence of Raltegravir-Resistant HIV-1 in Plasma versus PBMC Samples Revealed by 454 2028 Machado, LY 22985307 Transmitted HIV Type 1 Drug Resistance in Newly Diagnosed Cuban Patients. 2029 Avila-Rios, S 22110765 National prevalence and trends of HIV transmitted drug resistance in Mexico 2030 Telan, EF 21503904 The early phase of an HIV epidemic in a population exposed previously to HCV in the Philippines. 2031 Brehm, JH 22618567 Frequent emergence of N348I in HIV-1 subtype C reverse transcriptase with failure of initial therapy reduces susceptibility to reverse-transcriptase inhibitors. 2032 Telan, EF Characterization of HIV Circulating among Risk Populations in the Early Epidemic Phase in the Philippines 2035 Descamps, D 20965891 Increasing prevalence of transmitted drug resistance mutations and non-B subtype circulation in antiretroviral-naive chronically HIV-infected patients from 2001 to 2006/2007 in France 2036 Souza Cavalcanti, J 22564967 In-vivo selection of the mutation F121Y in a patient failing raltegravir containing salvage regimen 2037 da Silveira, AA 21790471 HIV type 1 molecular epidemiology in pol and gp41 genes among naive patients from Mato Grosso do Sul State, central western Brazil. 2038 Soria, J 21819256 Transmitted HIV resistance to first-line antiretroviral therapy in Lima, Peru. 2039 Hachiya, A 21249155 K70Q adds high-level tenofovir resistance to Q151M complex HIV reverse transcriptase through the enhanced discrimination mechanism. 2040 Trinh, QD 22260721 Short communication: Drug resistance mutations in the HIV type 1 protease and reverse transcriptase genes in antiretroviral-naive Vietnamese children. 2041 Villena, C 17314158 Relative fitness and replication capacity of a multinucleoside analogue-resistant clinical human immunodeficiency virus type 1 isolate with a deletion of codon 69 in the reverse transcriptase coding region. 2042 Murillo, W 22930496 Prevalence of transmitted HIV-1 drug resistance among female sex workers and men who have sex with men in El Salvador, Central America. 2043 Parczewski, M 23259737 HIV-1 integrase resistance among antiretroviral treatment naive and experienced patients from Northwestern Poland. 2044 Jones, LR 21936717 Drug resistance mutations in HIV pol sequences from Argentinean patients under antiretroviral treatment: subtype, gender, and age issues. 2046 An, M 22933290 Reconstituting the epidemic history of HIV strain CRF01_AE among men who have sex with men (MSM) in Liaoning, northeastern China: implications for the expanding epidemic among MSM in China 2047 Chen, M 23270497 Genetic diversity and drug resistance among newly diagnosed and antiretroviral treatment-naive HIV-infected individuals in western Yunnan: a hot area of viral recombination in China 2048 Hawke, KG 23098890 HIV non-B subtype distribution: emerging trends and risk factors for imported and local infections newly diagnosed in South Australia 2049 Li, L 23121221 Genetic Characterization and Transmitted Drug Resistance of the HIV Type 1 Epidemic in Men Who Have Sex with Men in Beijing, China 2050 Nazziwa, J 23173702 HIV-1 transmitted drug resistance and evidence of transmission clusters among recently infected antiretroviral naive individuals from Ugandan fishing communities of Lake Victoria 2051 Rolland, M 22960785 Increased HIV-1 vaccine efficacy against viruses with genetic signatures in Env V2 2052 Nadai, Y 19279683 HIV-1 epidemic in the Caribbean is dominated by subtype B. 2054 Miura, T 18562530 Genetic characterization of human immunodeficiency virus type 1 in elite controllers: lack of gross genetic defects or common amino acid changes 2055 Santos, AF 21975076 Primary HIV-1 drug resistance in the C-terminal domains of viral reverse transcriptase among drug-naive patients from Southern Brazil 2056 Yerly, S 15199317 HIV-1 co/super-infection in intravenous drug users 2057 Parreira, R 16849040 Genetic characterization of human immunodeficiency virus type 1 from Beira, Mozambique 2058 Yebra, G 19182919 Clinical differences and viral diversity between newly HIV type 1-diagnosed African and non-African patients in Spain (2005-2007). 2059 Han, X 20104106 Genetic and epidemiologic characterization of HIV-1 infection In Liaoning Province, China. 2060 Wang, YE 19036810 Protective HLA class I alleles that restrict acute-phase CD8+ T-cell responses are associated with viral escape mutations located in highly conserved regions of human immunodeficiency virus type 1. 2061 Holguin, A 18691031 Increase of non-B subtypes and recombinants among newly diagnosed HIV-1 native Spaniards and immigrants in Spain. 2062 Florea, D HIV transmitted drug resistance in Romania 2007-2010 2063 Pariente, N 15170628 Long-term suppression of plasma viremia with highly active antiretroviral therapy despite virus evolution and very limited selection of drug-resistant genotypes. 2066 Ye, JR 20950146 Sequence analysis of the gag-pol gene of human immunodeficiency virus type 1 of intersubtype (B/C) recombinant strain in Beijing, China. 2067 Ssemwanga, D 22544200 Transmitted antiretroviral drug resistance among drug-naive female sex workers with recent infection in Kampala, Uganda. 2068 Caron, M 22433277 Prevalence, genetic diversity and antiretroviral drugs resistance-associated mutations among untreated HIV-1-infected pregnant women in Gabon, central Africa. 2069 Temereanca, A 23592112 Transmitted HIV drug resistance in newly diagnosed, treatment-naive Romanian patients. 2070 Selimova, LM HIV-1 pol gene subtypes isolated from drug-naive individuals in Russia. 2071 Tramuto, F 23470353 Dynamics and molecular evolution of HIV-1 strains in Sicily among antiretroviral naive patients. 2073 Frentz, D 23551870 Limited cross-border infections in patients newly diagnosed with HIV in Europe. 2075 Rolland, M 21358627 Genetic impact of vaccination on breakthrough HIV-1 sequences from the STEP trial 2076 Escobar, G Transmitted drug-resistance in antiretroviral-naive HIV-infected population in El Salvador 2078 Chow, WZ 22997419 Genome sequences of a novel HIV-1 CRF53_01B identified in Malaysia 2080 Alencar, C 23507660 HIV genotypes and primary drug resistance among HIV seropositive blood donors in Brazil: role of infected blood donors as sentinel populations for molecular surveillance of HIV. 2081 Ferreira, JL 23401688 Transmitted Drug Resistance among People Living with HIV/Aids at Major Cities of Sao Paulo State, Brazil. 2082 Brown, AE 19133810 Phylogenetic reconstruction of transmission events from individuals with acute HIV infection 2084 Kijak, GH HIV-1 Prevalence and Subtype Distribution in HIV-1 Positive Volunteers Deferred from Enrollment in a Phase III Prime-Boost HIV-1 Vaccine Trial in Thailand 2085 Chen, M HIV-1 genotypes and drug resistance threshold survey in Honghe Prefecture of Yunnan Province in 2011 2086 Coetzer, M 23506238 Extensive Drug Resistance in HIV-Infected Cambodian Children who are Undetected as Failing First-Line Antiretroviral Therapy by WHO 2010 Guidelines. 2088 Bessong, PO 23455469 Genetic Analysis of HIV-1 Integrase Sequences from Treatment Naive Individuals in Northeastern South Africa. 2089 Brenner, BG 21360548 Subtype diversity associated with the development of HIV-1 resistance to integrase inhibitors 2091 Brockman, MA 22496233 Uncommon pathways of immune escape attenuate HIV-1 integrase replication capacity. 2093 Iamarino, A 22485165 BF integrase genes of HIV-1 circulating in Sao Paulo, Brazil, with a recurrent recombination region. 2094 Kim, JY 20946407 Genetic variation of the HIV-1 integrase region in newly diagnosed anti-retroviral drug-naıve patients with HIV/AIDS in Korea 2096 Luu, QP 22264071 HIV type 1 coreceptor tropism, CCR5 genotype, and integrase inhibitor resistance profiles in Vietnam: implications for the introduction of new antiretroviral regimens. 2097 Monleau, M 22236055 Drug resistance mutations of HIV type 1 non-B viruses to integrase inhibitors in treatment-naive patients from sub-saharan countries and discordant interpretations. 2101 Castro, E 20860534 HIV-1 drug resistance transmission networks in southwest Switzerland