广东省河源市龙川县华支睾吸虫感染现状调查

Current Prevalence of Clonorchis sinensis Infection in Longchuan County of Heyuan City, Guangdong Province

目的了解龙川县华支睾吸虫病感染现状和流行特征。方法在全县随机整群抽样,选取5个镇的居民作为调查对象,采集粪便标本,采用改良加藤厚涂片法粪检虫卵。结果共调查2645人,华支睾吸虫感染率为19.2%(508/2645),其中男性感染率为25.0%,女性为11.1%,二者差异有统计学意义(χ2=80.1,P<0.001)。人群中不同年龄组表现出不同的感染率,以40～岁和50～岁两个年龄组感染率最重。结论龙川县华支睾吸虫病流行范围广,感染率高,已经成为一个严重的公共卫生问题,应积极开展综合性防治工作。

Objective To study the epidemiological features of Clonorchis sinensis infection in Longchuan. Methods The investigation sites were random selected by cluster sampling and residents of 5 towns in Longchuan have been as investigation objects. Modified Kato Katz＇s thick smear was used to detect the parasite eggs in the feces. The data of infection rate and intensity were analyzed. Results A total of 2 645 persons were investigated. The average infection rate of Clonorchis sinensis was 19.2%. The positive rate of infection in male and female was 25.0% and 11.1%, respectively. The clonorchiasis was found in every age group. Analysis of the age distribution revealed that the highest score was found in the age group of 40 to 59 years old. Conclusion Clonorchis sinensis is widely epidemic in Longchuan with a high prevalence. The Clonorchis sinensis infection has become a serious public health problem. Comprehensive control measurements should be carried out.