[Study of schistosomiasis transmission interruption based on intensive agriculture]

Objective To study the effect of schistosomiasis transmission interruption model based on intensive agriculture in hilly endemic areas, so as to provide the reference for the similar endemic areas. Methods Based on the development of intensive agriculture in Guanghan City, a comprehensive demonstration area of schistosomiasis control with measures such as new rural construction, hardening ditches, the adjustment of industrial structure and water remediation measures was constructed. Jinhua, Shiguan and Hongyan villages were chosen as the evaluation sites to comparatively analyze the indexes of intensive agriculture and schistosomiasis control effects. Results Compared with the demonstration area before construction, in 2014, the harden rates of ditches and village roads were increased by 49.57% and 39.33% respectively; and the proportion of agricultural machinery increased by 25%. The positive rate of serological tests of schistosomiasis was decreased by 81.74%. The Oncomelania hupensis snail area was decreased from 2.44 hm² (2007) to 0 (2014). The awareness rate of schistosomiasis control knowledge and correct behavior rate of the residents were increased from 51.28% and 90.85% to 91.29% and 97.69% respectively. The experience of the demonstration area ensured the entire Guanghan District achieved the schistosomiasis transmission interruption criterion at the end of 2014. Conclusions The schistosomiasis control model of intensive agriculture combined with other comprehensive measures has a good effect on interrupting the endemic of schistosomiasis, and it can realize the sustainable development of the agricultural economy and schistosomiasis control.