Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021 Apr;33(2):127-132
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research); NHC Key Laboratory of Parasite and Vector Biology; WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases, Shanghai 200025, China.
Objective: To analyze the monitoring data of s in the national schistosomiasis surveillance sites of China from 2015 to 2019, so as to understand the changes of snail status in the schistosomiasis-endemic areas of China and to provide the scientific evidence for snail control.
Methods: According to the requirements of (), national schistosomiasis surveillance sites were assigned in all schistosomiasis-endemic counties (cities, districts) and the potential endemic counties (cities, districts) in the Three Gorges Reservoir areas, and snail status was monitored according to different epidemic types. In endemic areas, snail survey was performed by means of systematic sampling and environmental sampling, and the occurrence of frames with snails and the prevalence of infections in snails were calculated, while in potential endemic areas, the risk of imported snails and snails in floating debris were monitored. Read More