title: [Study on the distribution HIV-1 C subtype in Ruili and other counties, Yunnan, China].
abstract: Cooperating with CDC, USA, the Center for AIDS Surveillance, Chinese Academy of Preventive Medicine, first identified the epidemic of HIV-1 C subtype virus in China in 1994. As part of the Eighth-Five National Scientific Program and to get information about the geographical distribution of C subtype of HIV-1 and its epidemic time span in Yunnan, using specific peptide ELISA, we tested 192 anti-HIV-1 positive serums, among intravenous drug users. The results indicated that C subtype of HIV-1 started to appear in Ruili (5.1%) in 1992, and the rates were 12.9% in Ruili and 30.4% in Longchuan in 1993, up to 31.9% in Ruili and 33.3% in Longchuan in 1994. The porpotion of C subtype is increasing among the drug users by year. Whether C subtype would become the main the main epidemic subtype in this areas remains to be under observation.
authors.affiliation: Center for AIDS Surveillance, Chinese Academy of Preventive Medicine, Beijing.
authors.forename: D Q
authors.initials: DQ
authors.lastname: Li
authors.forename: X W
authors.initials: XW
authors.lastname: Zheng
authors.forename: G Y
authors.initials: GY
authors.lastname: Zhang
mesh_terms: D002681:China / Q000453:epidemiology; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D015528:HIV Seroprevalence; D015497:HIV-1 / Q000145:classification*; D006801:Humans; D008297:Male; D016485:Needle Sharing; D016133:Polymerase Chain Reaction; D012367:RNA, Viral / Q000032:analysis; D015819:Substance Abuse, Intravenous
chemical_list: D012367:RNA, Viral