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Issecting the earliest evolutionary steps in the emergence of HIV-1M. Keywords: HIV-1 diversity, West central Africa, RDP3, Maximum likelihood, PHYMLFindings The Congo basin in west central Africa is thought to be the origin of HIV, where several cross-species transmission events from chimpanzees to humans occurred [1,2]. Cameroon, located in this region, has one of the most genetically diverse HI
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Ibution of HIV-1 in CameroonSample ID BS01 BS02 BS03 BS04 BS05 BS06 BS09 BS10 BS11 BS12 BS13 BS14 BS16 BS18 BS19 BS20 BS21 BS22 BS23 BS24 BS25 BS26 BS27 BS29 BS30 BS31 BS32 BS35 BS38 BS39 BS40 BS42 BS43 BS44 BS45 BS46 BS47 BS48 BS49 BS50 BS51 BS53 BS54 BS55 gag gene CRF02_AG A-like G G CRF02_AG CRF02_AG CRF02_AG A1 CRF02_AG G CRF02_AG CRF02_AG CRF02_AG NDc CRF02_AG NDc CRF02_AG CRF02_AG CRF02_AG C
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Les 1, 2). The sequences clustered with different clades and circulating recombinant forms distributed throughout the phylogenetic trees (Table 2), consistent with the breadth of HIV-1 diversity previously described in Cameroon. CRF02_AG-like viruses dominated the clade distribution, infecting 50 of the 46 participants for which both genes were sequenced (Figure 2). Participants infected with vir
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Ibution of HIV-1 in CameroonSample ID BS01 BS02 BS03 BS04 BS05 BS06 BS09 BS10 BS11 BS12 BS13 BS14 BS16 BS18 BS19 BS20 BS21 BS22 BS23 BS24 BS25 BS26 BS27 BS29 BS30 BS31 BS32 BS35 BS38 BS39 BS40 BS42 BS43 BS44 BS45 BS46 BS47 BS48 BS49 BS50 BS51 BS53 BS54 BS55 gag gene CRF02_AG A-like G G CRF02_AG CRF02_AG CRF02_AG A1 CRF02_AG G CRF02_AG CRF02_AG CRF02_AG NDc CRF02_AG NDc CRF02_AG CRF02_AG CRF02_AG C
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Cias Zembe1, Eitel Mpoudi-Ngole2, Carolyn Williamson1,4 and Wendy A Burgers1*AbstractBackground: Cameroon, in west central Africa, has an extraordinary degree of HIV diversity, presenting a major challenge for the development of an effective HIV vaccine. Given the continuing need to closely monitor the emergence of new HIV variants in the country, we analyzed HIV-1 genetic diversity in 59 plasma s
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S clustered within the CRF02_AG clade, reinforcing the notion that this viral clade is a major contributor of genetic material to new recombinants [20]; an alternative explanation, however, could be that the gag and nef genes were amplified from different viruses co-infecting the same patients. Ongoing molecular and clinical surveillance will reveal whether new recombinants will begin to circulate
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Les 1, 2). The sequences clustered with different clades and circulating recombinant forms distributed throughout the phylogenetic trees (Table 2), consistent with the breadth of HIV-1 diversity previously described in Cameroon. CRF02_AG-like viruses dominated the clade distribution, infecting 50 of the 46 participants for which both genes were sequenced (Figure 2). Participants infected with vir
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F known clades. Although the majority of the outlier viruses found in our study were also URFs, they remained outliers after the removal of recombinant segments. It thus appears that these sequences represent viruses that are genuinely highly divergent and are possibly extant descendants of previously unknown early divergingTable 3 Inter and intraclade recombinantsSample ID BS02 BS09 BS11 BS13 BS2