Zhang J F, Li W, Feng Y, Yao Y Y, Wang X Y, Xiong C R, Liu L, Yang K
Jiangsu Institute of Parasitic Diseases, National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Wuxi 214064, China.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2019 Nov 14;31(6):599-602. doi: 10.16250/j.32.1374.2019164.
To analyze and investigate the changing trend of the endemic situation of schistosomiasis in national surveillance sites of Jiangsu Province from 2011 to 2018, so as to provide scientific evidence for formulating strategies for schistosomiasis control.
From 2011 to 2014, the national schistosomiasis surveillance sites were set in seven schistosomiasis endemic counties (cities, districts) across Jiangsu Province as according to the National Schistosomiasis Surveillance Scheme (2011 version), and from 2015 to 2018, the national surveillance sites were assigned in all 64 counties (cities, districts) endemic for schistosomiasis in Jiangsu Province according to the National Schistosomiasis Surveillance Scheme (2014 version). infections in local populations, mobile populations and livestock, and snail status were monitored in the national schistosomiasis surveillance sites of Jiangsu Province from 2011 to 2018, and the monitoring data were statistically analyzed.
The sero-prevalence of infections was 1.50% to 4.61% among local populations in the national schistosomiasis surveillance sites of Jiangsu Province from 2011 to 2018, and a higher sero-prevalence was seen in men than in women, with the sero-positives predominantly detected in local populations at ages of over 50 years. The positive rate of stool examinations was 0 to 0.14% among sero-positive local populations in the national schistosomiasis surveillance sites of Jiangsu Province from 2011 to 2018, and no acute case was found in local populations during the study period. The sero-prevalence of infections was 0.46% to 15.97% among mobile populations in the national schistosomiasis surveillance sites of Jiangsu Province from 2011 to 2018, and no egg-positives were identified. A total of 1 453 livestock were tested in the national schistosomiasis surveillance sites of Jiangsu Province from 2011 to 2018, and no infections were detected. During the period from 2011 through 2018, snail survey was conducted in an area of 216 million m in the national schistosomiasis surveillance sites of Jiangsu Province, and 1 291.01 hm snail habitats were identified, with snail densities ranging from 0.01 to 0.47 snails/0.1 m; however, no infections were identified in snails.
The overall endemic situation of schistosomiasis appears a tendency towards a decline in Jiangsu Province, and infection remains at a low level in both humans and livestock. No infection has been identified in local populations in Jiangsu Province since 2012. In the future, monitoring and management of imported sources of infections should be intensified in Jiangsu Province, and the capability building of passive surveillance of schistosomiasis should be improved in sentinel hospitals in national schistosomiasis surveillance sites of Jiangsu Province. In addition, the examination of schistosomiasis should be strengthened in mobile populations in Jiangsu Province, a sensitive and effective surveillance-response system for schistosomiasis is urgently needed.
分析和研究2011 - 2018年江苏省国家监测点血吸虫病流行状况的变化趋势，为制定血吸虫病防治策略提供科学依据。
2011 - 2014年，按照《全国血吸虫病监测方案（2011版）》，在江苏省7个血吸虫病流行县（市、区）设立国家血吸虫病监测点；2015 - 2018年，按照《全国血吸虫病监测方案（2014版）》，在江苏省64个血吸虫病流行县（市、区）均设立国家监测点。2011 - 2018年对江苏省国家血吸虫病监测点的本地居民、流动人口和家畜的感染情况以及螺情进行监测，并对监测数据进行统计分析。
2011 - 2018年江苏省国家血吸虫病监测点本地居民血清学感染率为1.50%～4.61%，男性血清学感染率高于女性，血清学阳性者主要集中在50岁以上本地居民。2011 - 2018年江苏省国家血吸虫病监测点血清学阳性本地居民粪便检查阳性率为0～0.14%，研究期间本地居民未发现急性病例。2011 - 2018年江苏省国家血吸虫病监测点流动人口血清学感染率为0.46%～15.97%，未发现粪便阳性者。2011 - 2018年江苏省国家血吸虫病监测点共检测家畜1 453头，未发现感染。2011 - 2018年江苏省国家血吸虫病监测点查螺面积2.16亿平方米，查出有螺框面积1 291.01公顷，活螺密度为0.01～0.47只/0.1平方米；未发现钉螺感染。
江苏省血吸虫病总体流行状况呈下降趋势，人群和家畜感染均处于低水平。2012年以来江苏省本地居民未发现感染。今后，江苏省应加强输入性传染源的监测与管理，提高江苏省国家血吸虫病监测点哨点医院血吸虫病被动监测的能力建设。此外，应加强江苏省流动人口血吸虫病检查，迫切需要建立灵敏有效的血吸虫病监测 - 反应系统。
