低发病率地区20例HIV/AIDS个案流行病学调查分析

目的了解低发病率地区HIV/AIDS在人群中的发病特征。方法采用河南省性病艾滋病防治研究所制订的《HIV/AIDS个案调查表》,对HIV/AIDS本人或家属进行逐项调查,并采血送省进行CD+4T淋巴细胞检测。结果(1)濮阳市HIV/AIDS流行率为0.56/10万(河南省人群估计HIV感染率约为35/10万),处于低发病率水平。(2)以性接触传播为主(50%),5例为配偶间性传播,5例有婚外性行为史。(3)HIV感染者CD+4T淋巴细胞大于300者只有3例,已陆续开始发病与死亡。结论濮阳市HIV/AIDS处于低发病率水平;以性接触传播为主;性行为传播是由高危人群向一般人群扩散的桥梁。

Individual Epidemiological Survey and Analysis on 20 HIV/AIDS Cases in low Incidence Area

Objective The present study was conducted to understand the morbidity characteristics of HIV/AIDS among population in low incidence area. Methods HIV/AIDS cases themselves or their family members were inquired one by one using "HIV/AIDS case questionnaire", which was mapped out by Henan Provincial Institute of sexually transmitted disease(STD) and AIDS , and their blood specimens were collected to detect CD+4T lymphocytes at the Henan provincial CDC. Results (1) The prevalence rate of HIV/AIDS was 0.56 per lakh in Puyang city (The estimated infection rate of HIV was 35 per lakh in the population in Henan), the incidence at a low level. (2) Transmission by sexual contact was found to be a major route of transmission (50%), there being five cases infected through spousal sexual transmission, and five cases who had a history of extramarital sexual behavior. (3) Among the HIV-infected, there were only 3 cases whose CD+4T lymphocytes were over 300, and who began to deteriorate to AIDS and die one after and another. Conclusion The incidence rate of HIV/AIDS was at a low level in Puyang city with transmission through sexual contact being the dominant route. Transmission through sexual behavior was a major route for the disease to spread from high risk population to the general population.