[Endemic status of schistosomiasis in People's Republic of China in 2017].

• DOI: 10.16250/j.32.1374.2018219
• Publication Date: 2018-10-25
• Authors: Lijuan Zhang; Xu Zhi-Min; Si-Min Dai; Hui Dang; Shan Lu; Jing Xu; Shi‐Zhu Li; Zhou Xiao-Nong
• Keywords: Oncomelania hupensis; SCHISTOSOMIASIS JAPONICA; People's Republic

This report presents the endemic status of schistosomiasis in People's Republic China at national level 2017, and analyzes data collected from prevention control system 457 surveillance sites. Among 12 provinces (municipality autonomous region) being japonica P. R. China, 5 region), i.e., Shanghai, Zhejiang, Fujian, Guangdong Guangxi, continued to consolidate elimination schistosomiasis. Sichuan Province achieved transmission interruption 6 Yunnan, Jiangsu, Hubei, Anhui, Jiangxi Hunan kept by end 2017. There were 450 counties (cities, districts) covering 259 million people, specifically including 28 544 villages 70 324.5 thousand people risk. districts), 47.78% (215/450), 34.00% (153/450) 18.22% (82/450) reached criteria elimination, control, respectively. By a total 8 401 113 individuals received examinations 14 parasitologically diagnosed, decreased 97.67% compared with 600 cases 2016. It was estimated 37 601 schistosome infection, 30.95% 54 454 One acute case reported 29 407 advanced documented Oncomelania hupensis snail surveys performed 19 784 O. snails found 7 310 villages, accounting for 36.95% newly detected snails.The survey covered an area 622454.49 hm2 172501.56 hm2, 208.54 hm2. No schistosome-infected A 737 016 bovines raised areas. Of them, 830 1 bovine stool examination positive. 119 326 receiving chemotherapy 973 968 undergoing expanded chemotherapy; one chemotherapy, 418 925 chemotherapy. 144 605.31 controlled using molluscicides, actual molluscicide-treated 73 755.37 hm2; 002.92 treated environmental modification. Based on sites, mean Schistosoma japonicum infection rate 0.001 6% 0 humans bovines, microscopic all samples nucleic acid positive loopmediated isothermal amplification (LAMP) among The results demonstrate continuous decline trend situation China. However, risk epidemic rebound still exists some regions it is challenge achieve target set Thirteenth Five-Year National Plan Schistosomiasis Control 2020.[摘要] 本文通报了2017年全国血吸虫病疫情, 并对全国血吸虫病预防控制工作数据和457个国家级血吸虫病监测点 疫情监测数据进行了汇总和分析。截至2017年底, 全国12个血吸虫病流行省 (直辖市、自治区) 中, 上海、浙江、福建、广 东、广西等5个省 继续巩固血吸虫病消除成果, 四川省达到传播阻断标准, 云南、江苏、湖北、安徽、江西 及湖南6个省达到传播控制标准。全国共有450个血吸虫病流行县 (市、区), 总人口2.59亿人; 共有28 544个流行村, 总 人口7 032.45万人。全国450个流行县 (市、区) 215个 (47.78%) 达到血吸虫病消除标准, 153个 (34.00%) 达到传播阻 断标准, 82个 (18.22%) 达到传播控制标准。2017年, 全国共完成人群血吸虫病查病8 113例, 发现粪检阳性14例, 较 2016年的600例减少了97.67%。2017年, 全国推算血吸虫病人数为37 601例, 较2016年的54 454例减少了30.95%; 其 中急性血吸虫病1例, 晚期血吸虫病29 407例。2017年全国共有19 784个流行村开展了钉螺分布调查, 310个村查出 钉螺, 占调查总数的36.95%; 新查出19个有螺村; 共查螺622 454.49 查出钉螺面积172 501.56 其中新发现钉螺 面积208.54 未发现感染性钉螺。2017年血吸虫病流行区现有存栏耕牛737 016头, 共检查耕牛454 830头, 发现粪 检阳性耕牛1 头。2017 年, 全国共治疗血吸虫病人119 例, 扩大化疗1 人·次; 治疗病牛1 头, 扩大化 疗耕牛418 925头·次; 开展药物灭螺总面积144 实际药物灭螺73 环境改造灭螺5 hm2。 2017年全国457个国家级血吸虫病监测点居民和耕牛平均血吸虫感染率分别为0.001 6%和0。解剖镜检法未发现感染 性钉螺, 但用环介导等温扩增技术在6个监测点检测到7份血吸虫核酸阳性钉螺样本。疫情数据分析显示, 全国血吸虫 病疫情总体保持持续下降态势, 但部分地区仍有疫情反弹趋势, 要实现《“十三五”全国血吸虫病防治规划》确定的2020 年目标仍面临挑战。.