Objectives To investigate the subtype distribution and changes in HIV-1 strains among men who have sex with men(MSM) in Beijing.Methods Four cross-sectional surveys of HIV+MSM were conducted from 2005~2009.Whole blood samples,anticoagulated with EDTA,were collected and then the plasma was separated no more than 4 h after collection.The specimens were characterized by reverse transcriptase-polymerase chain reaction(RT-PCR) amplification,DNA sequencing,and phylogenetic analysis of viral sequences to determine...
【基金】
国家自然科学基金项目(No.U1204811);
河南省博士后资金项目
【更新日期】
2013-08-02
【分类号】
R181.3
【正文快照】
***男男性接触者(men who have sex with men,MSM)由于其发生的非保护性性交、多性伴、商业性行为、双性间性行为等特殊的高危性行为,使其成为传播艾滋病的高危人群。当前,HIV经性传播已成为我国艾滋病传播的主要途径(2011年新发HIV感染中81.6%经性传播感染),以男男性传播上升?
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