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目的了解粤北乐昌市并殖吸虫流行分布现状。方法采集大洞村调查点山溪中螺蛳1 700余只、溪蟹88只,检查并殖吸虫尾蚴、囊蚴。应用检出的并殖吸虫囊蚴人工感染家猫1只,收集猫粪便,检查并殖吸虫虫卵,解剖粪检虫卵阳性猫,查找并殖吸虫成虫。结果大洞村螺蛳中短尾尾蚴感染率为0.58‰(1/1 700),螺蛳鉴定为放逸短沟蜷。蟹体卫氏并殖吸虫囊蚴感染率为38.09%(32/84),溪蟹鉴定为平和华溪蟹。解剖人工感染虫卵的阳性猫,检获P.w成虫4条。结论乐昌市乐城镇大洞村为一新发现的卫氏并殖吸虫高度(II级)自然疫源地,疾病预防控制中心与医疗卫部门及政府应高度重视。
Objective To understand the epidemiological distribution of Paragonimus in Lechang, Guangdong Province. Methods A total of more than 1 700 snails were collected from the investigation site of Dadong Cun, and 88 crabs were crested cercariae and cercariae. Application of the detection of Paragonimus metacercaria artificial infection of a domestic cat, cat litter collection, check the paragonimus eggs, anatomy fecal eggs positive cats to find Paragonimus adult. Results In Dadong village, the infection rate of middle and short cercaria larvae was 0.58 ‰ (1/1 700). Paragonimus westermani metacercaria infection rate was 38.09% (32/84), crabs identified as pacific crabs. Anatomy of Artificial Infected Eggs of Cats, Four P.worms were seized. Conclusion Dadong Village, Lecheng City, Lechang City is a newly discovered natural epidemic area of Paragonimus westermani. The Centers for Disease Control and Prevention (CDC), medical and health departments and the government should attach great importance to it.