[Systematic surveillance of water body in schistosomiasis susceptible areas in Nanchang County by sentinel mice].

OBJECTIVE

To determine the status of cercariae of Schistosoma japonicum in water bodies of the Nanchang County section of Poyang Lake region.

METHODS

By using sentinel mice, the schistosome infectivity of water bodies was detected in 8 surveillance areas (59 experimental points in total) along the Fu River, Wuxing Farm, south branch of the Ganjiang River, and middle branch of the Ganjiang River from June to July 2011.

RESULTS

A total of 600 sentinel mice were placed in the experimental areas and 584 were retrieved, among which 577 mice were dissected and 1 mouse was infected with S. japonicum (4 worms collected), with the infection rate of 0.17%.

CONCLUSION

By using the sentinel mouse method to survey the water body schistosome infectivity, the status of Oncomelania snails should be mainly considered, and the infection rate of sentinel mice is affected by water situation, water level, flow velocity, etc.