[Analysis of schistosomiasis endemic situation in Yunnan Province from 2009 to 2012].

Objective: To evaluate the effect of schistosomiasis control in Yunnan Province since achieving the transmission control standards, so as to provide the evidence for formulating the next prevention and control strategy.

Methods: The schistosomiasis epidemic monitoring reports, annual reports, relevant information about Oncomrnelania hupensis snails, and schistosomiasis patient conditions were collected and analyzed for epidemic condition and characteristics of schistosomiasis in Yunnan Province from 2009 to 2012.

Results: The various epidemic monitoring indicators all decreased. In 2012, compared with 2009, the prevalence reduced by 33.33% after correction; the number of villages with schistosomiasis patients reduced by 55.56%; the adjusted positive rate of livestock stool tests reduced by 45.45%; the number of villages with infected cow reduced by 42.25%; the actual area with snails reduced by 13.58%; the density of living snails reduced by 25.66%, and no schistosome infected snails were found in 2012.

Conclusion: There still exist schistosome infections in human and animals in some local areas of Yunnan Province, and it is difficult to achieve the standard of schistosomiasis transmission interrupted in a short period.