上海市外来流动人员血吸虫病调查

目的掌握上海市外来流动人员中血吸虫病潜在传染源的现况.方法以居住在上海市闵行、浦东2区6个乡(镇)的外来流动人员为调查对象,开展问卷调查和血清学检测,以本地户籍居民为对照.结果共调查2 931人,血清学阳性率为6.41%,其中来自血吸虫病流行省、传播阻断省和非流行省的血清学阳性率分别为8.10%、3.65%和2.40%.本地居民阳性率为3.56%,与来自传播阻断省和非流行省人员的血清阳性率之间差异均无显著性(P均＞0.05),但与流行省间差异有非常显著性(P＜0.01).来自血吸虫病未控制县和传播控制县人员的血清阳性率高于传播阻断县和非流行县的人员.外来流动人员中阳性者年龄主要集中在10～49岁,学历为小学和初中,来沪居住时间＜5年人群.结论来自血吸虫病流行地区的外来流动人员的输入可能对传播已阻断地区带来威胁.应加强外来流动人员的血吸虫病监测,防止传染源的输入.

Investigation on Schistosoma japonicum infection of mobile population in Shanghai City

Objective To understand the current status of potential Schistosoma japonicum infection of mobile population in Shanghai. Methods The study was carried out in 6 townships of two districts, Minhang and Pudong, in Shanghai, both by questionnaire survey and serum tests, in mobile population who came from other provinces. At the same time, the survey was performed in local populations as the control group. Results The serum positive rate was 6.41% in 2931 examined mobile population, and serum positive rates were 8.10%, 3.65% and 2.40% in mobile population who came from provinces where transmission of schistosomiasis on-going, interrupted and non-transmitted areas, respectively. The serum positive rate of local residents in Shanghai was 3.56%, which was not significantly different from that of mobile population who came from provinces where transmission interrupted or non-transmission areas, and was significantly lower than that where transmission on-going. The positives of serum tests in mobile population were mainly distributed in the age group of 10-49 years, with education at primary and middle school level, and less than 5 years being in Shanghai. Conclusions The mobile population from provinces where transmission of schistosomiasis is still going on is a potential infectious source to the region where transmission of schistosomiasis has been interrupted. It is essential to strengthen the schistosomiasis surveillance on mobile population that came from other provinces, in order to prevent from introduction of infectious sources of schistosomiasis.