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Subtype B Was the Dominant Strain Among HIV Type 1 Infections Except for the Population of Men Who Have Sex with Men in Harbin City China

机译:在中国哈尔滨市除男男性接触者人群外B亚型是艾滋病毒1型感染中的主要菌株。

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摘要

We sought to identify the prevalent subtypes and study the genetic variation of HIV-1 circulating in HIV infections in Harbin City, China. Forty-seven samples from the env V3-V4 region were successfully sequenced and analyzed, which involved thirty-one men who have sex with men (MSM), eight heterosexuals, seven former plasma donors (FPD)/blood transfusion recipients (BT), and one injection drug user (IDU). In all, 46.8% of CRF01_AE, 40.4% of subtype B, and 12.8% of CRF07_BC were identified. CRF01_AE (64.5%) was the dominant strain in MSM, and subtype B (81.2%) was the chief strain in other infected subjects except for the MSM population. Among all the genotypes, the B subtype possesses greater diversity of the tetramer on the tip of V3 loop than CRF07_BC and CRF01_AE, in which the peculiar GWGR was commonly found. Because nationwide there is a trend toward the increasing presence of CRF01_AE, a consecutive surveillance campaign was necessary among all HIV vulnerable populations in this locality.
机译:我们试图鉴定流行的亚型,并研究中国哈尔滨市HIV感染者中传播的HIV-1的遗传变异。成功地对来自env V3-V4区域的47个样本进行了测序和分析,其中包括31名与男性发生性行为的男性(MSM),8名异性恋者,7名前血浆供体(FPD)/输血受者(BT),一名注射毒品使用者(IDU)。总共鉴定出46.8%的CRF01_AE,B的40.4%和CRF07_BC的12.8%。 CRF01_AE(64.5%)是MSM的主要菌株,而B型(81.2%)是MSM人群以外的其他感染对象的主要菌株。在所有基因型中,B亚型在V3环末端具有比CRF07_BC和CRF01_AE大的四聚体多样性,在CRF07_BC和CRF01_AE中通常发现特有的GWGR。由于在全国范围内,CRF01_AE的存在呈上升趋势,因此必须对该地区的所有HIV易感人群进行连续的监视运动。

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