Fig. 3From: Two-year cross-sectional studies reveal that single, young MSMs in Shenzhen, China are at high risk for HIV infectionCompositions of four CRF01_AE clusters identified in Shenzhen City. Maximum Likelihood tree was created based on partial pol sequences of CRF01_AE identified in Shenzhen City. The background information of sequences in different clusters is summarized on the right side. Strains transmitted through different route are labeled in different colors as listed in the lower right cornerBack to article page