[Effect of comprehensive schistosomiasis control in Bianmin River of Jurong City from 2000 to 2011].

OBJECTIVE: To evaluate the effect of comprehensive control of schistosomiasis in the Biamin River water system. METHODS: The distribution of Oncomelania snails and schistosome infections of residents and cattle were investigated longitudinally in Biamin River system from 2000 to 2011. RESULTS: After the comprehensive control of schistosomiasis, the average densities of infected snails decreased from 0.013 snails/0.1 m2 to 0, the average densities of living snails decreased from 7.43 snails/0.1 m2 to 0.38 snails/0.1 m2, the infected snail area decreased from 0.08 hm2 to 0, the snail area decreased from 17.84 hm2 to 10.57 hm2, and the crowd serological positive rate decreased from 6.90% to 0.96%. CONCLUSIONS: The snail habitats have been eliminated obviously by the comprehensive measures including concrete banks of rivers connecting with the Yangtze River. Thus the schistosomiasis situation has been controlled effectively. However, the snail spread from other schistosomiasis endemic places could not avoided, so we still need to strengthen the snail surveillance and snail control of the rivers connecting with the Yangtze River.