Figure 1From: 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 fitnessVirus phylogeny. The complete env and pol coding regions were sequenced for each virus isolate (EMBL accession numbers: env; AM279343āAM279369 and pol; AM279370āAM279396). Subsequently, NJ-trees were constructed and tree topology was assessed by bootstrap analysis. The SIVcpzGAB sequence was used to root the tree. Ten isolates were found to group with the CRF02_AG reference strains, five were subtype A and five were subtype G.Back to article page