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分别采用血清学分型和基因序列分析方法对１９９６～１９９７年收集的７２份标本进行人类免疫缺陷病毒１型（ＨＩＶ－１）亚型鉴别分析，证实我区存在着ＨＩＶ－１Ｂ′、Ｃ、Ｄ和Ｅ４种基因亚型。在有偿供血者中以Ｂ′亚型感染为主和个别的Ｄ亚型感染，并散发于全区，而Ｃ亚型则在吸毒人群中流行，Ｅ亚型仅在中越边境地区吸毒人群中流行，形成我国新的ＨＩＶ－１基因亚型流行区。分析了我区ＨＩＶ－１的传染来源及不同亚型病毒混合流行对今后趋势的影响。
Serological typing and sequence analysis were used to analyze the subtypes of HIV-1 in 72 samples collected from 1996 to 1997, confirming the presence of HIV-1B ’, C, D And E4 genotypes. Among compensated blood donors, infection with predominantly B ’subtype and individual subtypes D were distributed throughout the region while subtype C was endemic among drug users, while subtype E was endemic only among drug abusers in the border between China and Vietnam , Forming a new genotype of HIV-1 in China. The source of HIV-1 infection in our district and the impact of different subtypes of the virus on future trends were analyzed.