[Surveillance of schistosomiasis in Jiangsu Province, China, 2005-2010]

To understand the endemic situation of national surveillance sites in Jiangsu Province from 2005 to 2010, so as to provide the evidence for the prevention and control of schistosomiasis.

According to the national surveillance protocol, a longitudinal surveillance on endemic situation of schistosomiasis was carried out in 8 national surveillance sites from 2005 to 2010.

In general, the positive rates of blood tests and infection rates of Schistosoma japonicum decreased from 9.04% and 0.22% in 2005 to 4.34% and 0.02% in 2010, and the rates of decline were 51.99% and 90.91%, respectively. The endemic situation of farmers, fishermen and business men were relatively serious, and the infection degree of the low-aged group of students was relatively serious. No local acute schistosomiasis case was detected. A total of 7 466.46 hm2 of environmental sites were investigated, and the areas with living Oncomelania hupensis snails and infected snails were 2 213.98 and 247.91 hm2, respectively, the densities of living snails and infected snails decreased gradually, and no infected snail was found in 2010. However, the total areas with living snails and infected snails still keep a relative high level, and the density of infected snails rebounded in special sites.

The endemic situation of the national surveillance sites is under control, and the infection rate of human keeps at a low level in Jiangsu Province. The surveillance and control of snails and infection source should still be strengthened.