Abstract:

【Abstract】 Objective  To analyze the data obtained from the national surveillance station of Shashi area for understanding the dynamic changes of schistosomiasis in order to supply scientific evidence for prevention and control of this disease. Methods  By the techniques and procedures defined in the National Schistosomiasis Surveillance Program, we conducted the surveillance over the endemicity of schistosomiasis in Huangchang village in Shashi area, and statistically analyzed the monitoring data obtained from 2005 through 2014. Results   In 2005 and 2014, the positive rate for blood test and fecal smears in local villagers were decreased from 16.47% and 4.44% in 2005 to 6.51% and 3.72% in 2014, respectively. The infection rate with schistosome was decreased to 0.20% from 0.73%, with a decrease rate of 72.60%. No acute infection was reported in a ten-year period. Cattle infection was reduced to zero from 18.0% in 2005. The areas with Oncomelania hupensis were increased from 2.91hm2 to 3.72hm2(27.83% increase). Although the density of living snails tended to decline in this area, yet was rebounded in 2012, and the infected snails were free in the ten-year period. Conclusion  Schistosomiasis presents with low endemicity in Huangchang village in Shashi area, nevertheless, it appears difficult to consolidate the previous efforts.

Key words: Schistosomiasis, Endemic situation, Surveillance, Huangchang village, Hubei Province