Abstract Background Soil-transmitted helminths (STHs), such as hookworm, roundworm and whipworm, and food-borne trematodiases, including Clonorchis sinensis, remain a public health problem worldwide, especially in tropical and subtropical regions. Objective We aimed to determine the current prevalence of these parasites in Guangxi, China, which is located in a subtropical region. Methods A cross-sectional study and a 4-year longitudinal surveillance study were carried out. Stool samples were collected and examined microscopically for parasite eggs using the modified Kato-Katz thick smear method. Results The study subjects selected using stratified random cluster sampling for the cross-sectional study and longitudinal surveillance study numbered 15,683 and 24,429, respectively. In the cross-sectional study, hookworm, roundworm, whipworm, pinworm, C. sinensis, and tapeworm were found. The total prevalence of soil-transmitted helminths (STHs) was 6.4% (95% CI, 6.0-6.8). The prevalences of C. sinensis, hookworm, roundworm, whipworm, and pinworm were 10.6%, 4.2%, 0.3%, 0.3%, and 1.8%, respectively. The prevalence of C. sinensis in males (14.0%, 95% CI, 13.3-14.8) was significantly higher than in females (7.2%, 95% CI, 6.7-7.8) (P = 0.0001). The prevalence also was significantly higher in the medical worker group (20.8%, 95% CI, 12.9-28.7) than in all other occupational groups (10.5%, 95% CI, 10.0-11.0) (P = 0.0001). The prevalence of hookworm in females (5.3%, 95% CI, 4.8-5.8) was significantly higher than in males (3.0%, 95% CI, 2.6-3.3) (P = 0.0001). In the longitudinal surveillance study, the prevalence of C. sinensis and STHs in 2016, 2017, 2018, and 2019 were 12.0%, 6.0%, 11.0%, and 10.0% and 2.6%, 2.8%, 1.5%, and 1.5%, respectively. Conclusions Adult male and occupation of and medical workers are risk factors for infection with C. sinensis and hookworm. The prevalence rate of C. sinensis remains high while those of the other STHs are decreasing, suggesting that enhanced health education should be focused on C. sinensis in Guangxi.
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机译：摘要背景土壤传播的蠕虫（STH），如钩虫，蛔虫和鞭虫，以及包括Clonorchis Sinensis，包括Clonorchis Sinensis的食物传播的射线症，尤其是在热带和亚热带地区的公共卫生问题。目的我们旨在确定中国广西这些寄生虫的流行，该寄生虫位于亚热带地区。方法进行横断面研究和4年的纵向监测研究。使用改性的Kato-Katz厚的涂抹方法收集并检查寄生虫的粪便样品并检查寄生虫。结果分别使用分层随机聚类采样选择的研究对象分别为横截面研究和纵向监测研究编号为15,683和24,429。在横截面研究中，发现了钩虫，蛔虫，鞭毛，Pin虫，C. sinensis和绦虫。土壤传播蠕虫（STH）的总患病率为6.4％（95％CI，6.0-6.8）。 C. sinensis，钩虫，蛔虫，鞭虫和pin虫的普及分别为10.6％，4.2％，0.3％，0.3％和1.8％。雄性中的C. sinensis的患病率（14.0％，95％CI，13.3-14.8）显着高于女性（7.2％，95％CI，6.7-7.8）（P = 0.0001）。医学工人组（20.8％，95％CI，12.9-28.7）中的患病率也明显高于所有其他职业群体（10.5％，95％CI，10.0-11.0）（P = 0.0001）。女性钩虫的患病率（5.3％，95％CI，4.8-5.8）显着高于男性（3.0％，95％CI，2.6-3.3）（P = 0.0001）。在纵向监测研究中，2016年，2016年，2018年的C. Sinensis和STH的患病率为12.0％，6.0％，11.0％和10.0％和2.6％，2.8％，1.5％和1.5％，分别。结论成年男性和职业工人是患有C. sinensis和cootworm感染的危险因素。 C. Sinensis的患病率仍然很高，而其他STH的含量仍然很高，这表明增强的健康教育应重点关注广西的C. Sinensis。
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