[Sources and characteristics of newly reported HIV/AIDS cases in Yiwu, Zhejiang province, 2015-2016].

Objective: To understand the sources and characteristics of newly reported HIV/AIDS cases in Yiwu, Zhejiang province, from 2015 to 2016. Methods: From January 1, 2015 to December 31, 2016, newly reported HIV/AIDS cases in Yiwu were recruited in the study and they were asked to complete an in-depth field epidemiology questionnaire. Information related to their previous sexual behaviors and infection sources or routes were collected in the survey. The data were processed and analyzed with EpiData 3.0 and SPSS 19.0 software. Results: A total of 320 participants from 393 newly reported HIV/AIDS cases in Yiwu during this period were surveyed and recruited in the study. Most of them were males (268, 83.8%), unmarried (141, 44.1%), aged between 25-44 years (166, 51.9%), had census register in other provinces (217, 67.8%) and educational level of junior high school (128, 40.0%). Among 305 cases whose infection times could be determined, 107 (35.1%) were newly infected within one year, and among 267 cases whose infection location could be determined, 200 (74.9%) were infected in Yiwu. New infections were mainly detected in those who had homosexual behaviors or causal sex partners (during the past year) and through active detection approach. Local infections were mainly among those who had local residence and commercial heterosexual behavior in Yiwu. Conclusions: Most newly reported HIV/AIDS cases in Yiwu from 2015-2016 were infected for more than one year and locally infected. Census registration of other provinces, homosexual sexual behavior, and casual sexual behavior give major contribution to HIV/AIDS epidemic in Yiwu.目的： 分析2015－2016年浙江省义乌市新报告艾滋病病毒感染者和艾滋病患者（HIV/AIDS）感染来源及特征，为当地开展有效的艾滋病防控措施提供依据。 方法： 招募2015年1月1日至2016年12月31日义乌市新报告HIV/AIDS作为研究对象，采用个案调查问卷面对面收集研究对象的人口学、行为学、感染途径及感染来源等相关信息。采用EpiData 3.0和SPSS 19.0软件进行数据整理和统计学分析。 结果： 招募HIV/AIDS共393人，完成调查320人，主要以男性（268，83.8%）、未婚（141，44.1%）、外省户籍（217，67.8%）、初中文化程度（128，40.0%）和年龄25~44岁（166，51.9%）为主。新感染病例数占可判断感染时间研究对象的35.1%（107/305），本地感染病例占可判断感染地点研究对象的74.9%（200/267）。新感染病例以男男性行为感染、最近1年有临时性伴、主动检测发现为主；义乌市户籍的病例更有可能经在义乌本地发生的异性商业性行为感染HIV。 结论： 2015－2016年义乌市新报告HIV/AIDS主要以既往感染和本地感染为主。外省户籍、男男性行为感染、临时性行为对义乌市HIV的传播影响较大。.