广州番禺区1998～2002年华支睾吸虫的感染状况

Infectious Status of Clonorchis sinensis in Guangzhou Panyu District from 1998 to 2002

目的 了解番禺区人群华支睾吸虫分布状况及流行特点,为今后制定防治策略提供依据。方法 根据番禺区各乡镇的地理分布,选择东南西北中各一个镇辖内1～3个自然村的人群及部分中学生作为调查点,用清水沉淀法或改良加藤氏厚涂片法粪检华支睾吸虫虫卵,并计算每克粪便虫卵数;对餐饮业重点人群采血进行华支睾吸虫抗体检测。结果 5年共粪检10715人,华支睾吸虫感染1597人,感染率为14.90％。重点人群华支睾吸虫抗体检测127530人,阳性12278人,阳性率9.63％。2002年番禺区华支睾吸虫感染率比1988年上升了76.35％。结论 华支睾吸虫已对当地人们身体健康构成严重的危害,感染人数有增无减。应加强宣教工作,提高个人的自我防护意识,把好“虫从口入”关;采取有效的综合防制措施,阻断华支睾吸虫传播流行。

Objective To study the infectious distributions and epidemiology character of Clonorchis sinensis in Guangzhou Panyu district, and to establish the prevention strategy. Methods Based on the geographic feature of Panyu, the people and students mainly inhabited in 1～3 natural village of four counties in different locations (east, south, west and north direction) were investigated. The eggs of Chonorchis sinensis in stools were checked by clean water deposition and Kato-Katz thick smear method. The number of eggs per gram of stool was estimated. The sera of restaurant workers were tested for the antibody against Chonorchis sinensis. Results The eggs of Chonorchis sinensis were checked in 10715 peoples, of which 1597 peoples were infected, with an infection rate of 14.90%. Sera of 127530 people were tested for the anti- Chonorchis sinensis antibody, of which 12278 peoples were positive, with a positive rate of 9.63%. The results of the two nationwide investigations of human parasites in 1988 and 2002 indicated that the infection rate of Chonorchis sinensis was increased by 76.35%. Conclusions The health of peoples in the district is threatened seriously by the infection of Chonorchis sinensis. The number of infected peoples was increased dramatically from 1988 to 2002. The propaganda, education and individual consciousness on the prevention of chonorchiasis must be strengthened. The effective and integrated control measures must be taken. Proper stool disposal must be strictly implemented.