[Evaluation on effect of schistosomiasis control after attainment of criteria for infection control in Jinxian County].

OBJECTIVE

To understand the schistosomiasis epidemic situation after the attainment of criteria for infection control, and evaluate the effect of control measures in Jinxian County, Jiangxi Province.

METHODS

The data of schistosomiasis epidemic situation including the infection rates of residents and Oncomelania snails were collected and analyzed statistically in the infection-controlled, transmission-controlled, and transmission-interrupted areas in Jingxian County from 2008 to 2011.

RESULTS

The antibody positive rates of population were decreasing year by year from 2008 to 2011 with the rate in the infection-controlled area being higher than the rates in the transmission-controlled and the transmission-interrupted areas. In the infection-controlled area, the stool examination positive cases decreased from 29 cases in 2008 to 1 in 2011. In 2008, the spots with infected snails in the infection-controlled area and the transmission-controlled area were 63 and 5 spots, respectively. The spots with infected snails in the infection-controlled and transmission-controlled areas in 2011 decreased by 95.23% and 80.00%, respectively compared with that in 2008.

CONCLUSION

The schistosomiasis control measures are effective after the attainment of criteria for infection control, and the epidemic situation is stable in Jinxian County.