荆州市2006年血吸虫病疫情抽样调查

Sampling Survey on Schistosomiasis in Jingzhou City in 2006

为查清荆州市血吸虫病疫情现状以及控制疫情存在的主要难点,于2006年底在荆州市8县122个乡镇场的453村,对人、畜血吸虫病病情和螺情进行了抽样调查。结果表明人群感染率为3.9%(11994/310232),急性血吸虫病病例呈散在发生,无突发疫情。耕牛感染率为10.2%(270/2651)。活螺平均密度为0.67只/0.11m2,感染性螺密度为0.0019只/0.11m2(1988/1054597),感染率为0.28%(1988/713486)。与2004年比较,人群感染率下降40.0%,急性血吸虫病例数下降33.3%。钉螺面积增加4.0%,活螺平均密度增加68.5%,感染性钉螺密度增加18.8%,钉螺感染率下降36.4%。耕牛感染率上升22.3%。建议重点加强耕牛血吸虫病防治。

A survey on schistosomiasis conducted in sampled 453 out of 1971 villages in Jingzhou City in the year of 2006. Miracidia hatching test demonstrated that the prevalence in human population was 3.9% （12 006/310 232）, with sporadic cases of acute schistosomiasis, and the prevalence in cattle was 10.2%（270/2 651）. The mean density of living snails was 0.67/0.11 m^2（1988/1 054 597） with a density of infected snails of 0.001 9/0.11 m^2（1 988/713 486）. In comparison to those of 2004, prevalence in humans decreased by 40.0%, prevalence in cattle increased by 22.3%; the snail-ridden area increased by 4.0%, but the mean density of living snails increased by 68.5% and the infected snail density increased by 18.8% with a decrease of 36.4% in snail infection rate. Consequently, there is an urgent need in controlling schistosome infection in cattle.