Li X X, Wang P, Li B, Wu Q
Jiangshan Center for Disease Control and Prevention, Zhejiang Province, Jiangshan 324100, China.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2019 Oct 14;32(1):103-105. doi: 10.16250/j.32.1374.2019054.
To analyze the endemic situation of schistosomiasis in Jiangshan City from 2008 to 2018, so as to provide evidence for formulating the future control strategy.
The data regarding snail survey and control, schistosomiasis examinations and environmental improvements were collected in Jiangshan City from 2008 to 2018. The changes in snail status and morbidity due to infections were analyzed to assess the effectiveness of comprehensive schistosomiasis control.
From 2008 to 2018, a total of 61 220 person-times were examined for infections in Jiangshan City, and the overall seroprevalence of infections was 0.56% (343/61 220); however, no egg-positives were detected. Among 4 231 cattle screened for infections using blood tests in Jiangshan City during the period from 2008 to 2018, 12 were sero-positive, with sero-prevalence of 0.28% (12/4 231), and no egg-positives were identified. There were 422 snail habitats identified in Jiangshan City during the study period, covering an area of 46.915 hm, and among the 31 686 snails dissected, no infections were detected. An area of 3 625.492 hm snail habitats were subjected to repeated snail control and 11 settings were given environmental improvements, covering snail habitats of 17.880 hm and historical snail habitats of 204.380 hm.
Following the implementation of environmental improvements-based comprehensive schistosomiasis control, the endemic situation of schistosomiasis is stable in Jiangshan City; however, there is still a risk of snail importation and re-emerging schistosomiasis. Therefore, the monitoring of snails and morbidity due to infections should be intensified in the city.
