Guo Wei, Qu Shu-quan, Ding Zheng-wei, Yan Rui-xue, Li Dong-min, Wang Lan, Wang Lu
National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2010 Jun;31(6):666-9.
To understand the characteristics and trends of HIV and syphilis infections among drug users.
Information was collected regarding HIV and syphilis epidemics, as well as on high risk behaviors from the HIV/AIDS surveillance system. Source of information was from HIV/AIDS case-reporting, sentinel surveillance and trend estimation, related to the changes of distribution among HIV positive drug users prevalence rates on HIV and syphilis together with their high risk behaviors.
Scale number on drug users remained stable in the past six year (from 2003 - 2009), while the proportion of drug users decreased from 44.2% in 2005 to 25.8% in 2009. Based on the information from HIV/AIDS case reporting system, HIV sentinel surveillance data showed that the HIV prevalence of drug users was quite different from those of Southwestern to Northeastern parts of China. The HIV prevalence in Southwestern China was much higher than that of the Northeastern areas. Sentinel surveillance data showed that the average positive rates were 6.2% and 3.7% on HIV and syphilis, among the drug users. As for injecting drug users (IDU), the average rates on HIV antibody syphilis and HCV were 9.2% and 4.0% respectively. Series surveillance data indicated that the HIV epidemic expanded quickly among drug users from 1995 - 1999 but became plateaued after 2000 among the IDUs. HIV antibody positive rate remained at 9.0% - 10.0% in the past three years while syphilis fluctuated between 3.5% - 4.5% in the past three years.
Drug users and IDUs still remained an important driven factor for HIV/AIDS epidemic in China, suggesting more specific strategies and methods should be developed, based on the characteristics and trends of HIV epidemic, to optimize the allocation HIV prevention and control resources.
了解吸毒人群中艾滋病病毒（HIV）和梅毒感染的特征及趋势。
从HIV/AIDS监测系统收集有关HIV和梅毒流行情况以及高危行为的信息。信息来源包括HIV/AIDS病例报告、哨点监测和趋势估计，涉及HIV阳性吸毒者中HIV和梅毒患病率的分布变化及其高危行为。
在过去六年（2003 - 2009年）中，吸毒人群规模保持稳定，而吸毒人群的比例从2005年的44.2%降至2009年的25.8%。根据HIV/AIDS病例报告系统的信息，HIV哨点监测数据显示，吸毒人群的HIV患病率在中国西南部和东北部地区存在显著差异。中国西南部地区的HIV患病率远高于东北地区。哨点监测数据显示，吸毒人群中HIV和梅毒的平均阳性率分别为6.2%和3.7%。对于注射吸毒者（IDU），HIV抗体、梅毒和丙型肝炎病毒（HCV）的平均感染率分别为9.2%和4.0%。系列监测数据表明，1995 - 1999年期间，HIV在吸毒人群中迅速传播，但2000年后在IDU中趋于平稳。过去三年中，HIV抗体阳性率保持在9.0% - 10.0%，而梅毒在过去三年中波动于3.5% - 4.5%之间。
吸毒者和IDU仍是中国HIV/AIDS流行的重要驱动因素，提示应根据HIV流行的特征和趋势制定更具针对性的策略和方法，以优化HIV预防和控制资源的分配。
