江门市蓬江区华支睾吸虫病感染调查及流行病学分析

目的 了解江门市蓬江区华支睾吸虫病感染情况及流行因素.方法 采用清水沉淀法粪检华支睾吸虫虫卵,在江门市的蓬江区选择5个镇(区),每个镇(区)选择1个自然村,每个村抽取500人进行人群及中间宿主、保虫宿主的感染情况调查.结果 共调查了2 501人,肝吸虫平均感染率为21.47％,5个自然村感染率差异有统计学意义(x2=258.70,P＜0.05)；随着年龄的增大,感染率也逐渐增高,男性41岁以上人群感染率高达50.12％,男性感染率明显高于女性,差异有统计学意义(x2=51.55,P＜0.05).检查了6种鱼共156条,鱼体内肝吸虫囊蚴平均检出率为9.62％；保虫宿主感染率以狗最高,猫次之,未发现猪体感染.蓬江区各人群对华支睾吸虫病防治知识知晓率均低于30.00％.结论 江门市蓬江区是华支睾吸虫病重度流行区,应采取综合防治措施控制华支睾吸虫病的流行.

Investigation of the Epidemiological Characteristic of Clonorchiasis in Jiangmen Pengjiang District

Objective To study the infection status and epidemiological character of clonorchiasis in the demonstration area of Jiangmen Pengjiang district, and provide scientific basis for establishing the prevention strategy. Methods The eggs of Clonorchis sinensis in stools were checked by clean water deposition.The investigation to intermediate and reservoir hosts had also been carried out. Results The eggs of Clonorchis sinensis were checked in 2 501 peoples of 5 villages in the demonstration area,with an average infection rate of 21.47%. The differences in the infection rates between 5 natural villages were significant （X^2=258.70,P〈0.05）. The infection rate of Clonorchis sinensis showed an increasing trend along with the increase of the age of peoples. High infection rate was noticed in male over 41 years old （50.81%）. The infection rate of Clonorchis sinensis of male was significantly higher than that of female （X^2=51.55,P〈0.05）. Clonorehis sinensis metacerearias were checked in 156 samples of 6 kinds of fish,with an infection rate of 9.62%. Dog was the reservoir host with highest infection rates, followed by eat, and no Clonorchis sinensis metaeerearia and adult worm could be detected in pigs. The level of Clonorchis sinensis prevention knowledge of the residents in the demonstration area was below 30%. Conclusions Clonorehiasis was severe endemic in the demonstration area of Jiangmen Pengjiang district. Effective and integrated measures must be taken to control the prevalence of the disease.