Chinese Journal of Schistosomiasis Control ›› 2021, Vol. 33 ›› Issue (4): 420-.

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Surveillance of schistosomiasis in Xiaogan City from 2016 to 2020

CHENG Bin*, WU Jing⁃Yi   

  1. Xiaogan Municipal Center for Disease Control and Prevention, Hubei Province, Xiaogan 432000, China
  • Online:2021-08-30 Published:2021-08-31



  1. 湖北省孝感市疾病预防控制中心(孝感 432000)
  • 作者简介:程斌,男,副主任医师。研究方向:血吸虫病防治

Abstract: Objective To analyze the surveillance data of schistosomiasis in Xiaogan City, Hubei Province from 2016 to 2020, so as to provide the scientific evidence for understanding the epidemiological changes of schistosomiasis and evaluating the schistosomiasis control strategy. Methods A total of 16 surveillance sites were selected in the schistosomiasis endemic foci of Xiaogan City from 2016 to 2020, where Schistosoma japonicum infections in humans, livestock and Oncomelania snails and the schistosomiasis transmission risk were monitored. The schistosomiasis surveillance results were descriptively analyzed. Results During the period from 2016 to 2020, there was no schistosomiasis emergency epidemic in Xiaogan City. A total of 660 sero⁃positive individuals were identified in Xiaogan City during the 5⁃year period, and the seroprevalence of S. japonicum infections reduced from 2.08% in 2016 to 0.97% in 2020. Higher seroprevalence of S. japonicum infections was detected in men than in women, and in individuals at ages of over 60 years than in those at other age groups; however, no egg⁃positives were detected in humans or livestock. The mean density of living snails was 0.05 to 0.06 snails/0.1 m2 during the 5⁃year period, and the occurrence of frames with snails increased from 2.99% in 2016 to 3.92% in 2020; however, no S. japonicum infection was found in snails. Conclusions The endemic situation of schistosomiasis remarkably decreases in Xiaogan City during the period from 2016 through 2020. Further improvements of the sensitive and effective schistosomiasis surveillance system are required with an emphasis on the monitoring of the schistosomiasis transmission risk and management of floating populations.  

Key words: Schistosomiasis, Endemic situation, Surveillance, Xiaogan City

摘要: 目的 分析2016—2020年湖北省孝感市血吸虫病疫情监测数据,为掌握血吸虫病流行趋势、科学评价防治效果提供参考依据。方法 2016—2020年在孝感市血吸虫病流行区选择16个监测点开展人畜血吸虫感染、螺情及血吸虫病传播风险监测,对监测结果进行描述性分析。结果 2016—2020年,孝感市无血吸虫病突发疫情发生。5年在16个监测点累计查出血检阳性660例,血检阳性率由2016年的2.08%下降到2020年的0.97%,男性血检阳性率高于女性、60~岁年龄组血检阳性率高于其他年龄组;未检出粪检阳性病例和阳性家畜。活螺平均密度为0.05~0.06只/0.1 m2,有螺框出现率由2016年的2.99%上升到2020年的3.92%,但未发现血吸虫感染性钉螺。结论 2016—2020年孝感市血吸虫病疫情显著下降;今后需继续健全敏感有效的血吸虫病监测体系,重点加强血吸虫病传播风险监测及流动人口管理。

关键词: 血吸虫病, 疫情, 监测, 孝感市

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