Huang J L, Zhang M Z, Zhu H H, Zhu T J, Zhou C H, Qian M B, Chen Y D
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention; WHO Collaborating Center for Tropical Diseases; Key Laboratory of Parasite and Vector Biology, National Health Commission, Shanghai 200025, China.
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2020 Jan 16;32(1):54-59. doi: 10.16250/j.32.1374.2019239.
To understand the epidemic status of infections among children aged 3 to 9 years in China, so as to provide scientific basis for the formulation of the prevention and control strategies for enterobiasis.
The national surveillance of enterobiasis was performed in 736 national surveillance sites (counties) from 30 provinces (municipalities/autonomous regions) in China from 2016 to 2018. All surveillance sites were classified into parts according to the geographical directions, including the eastern, western, southern, northern and middle parts, and a township was randomly selected from each part. Then, an administrative village was randomly selected from the township, and 200 permanent residents at ages of over 3 years living in the administrative village were randomly selected using the cluster sampling method. A total of 1 000 residents were examined in each surveillance site. infections were detected among children at ages of 3 to 9 years using the modified Kato-Katz technique and the adhesive cellophane-tape perianal swab method, and the prevalence of infections was calculated and compared.
The prevalence of infections was 2.50%, 2.84% and 2.46% among children at ages of 3 to 9 years in the 736 surveillance sites from 30 provinces (municipalities/autonomous regions) in China from 2016 to 2018, and there was no gender-specific prevalence of infections ( > 0.05). Enterobiasis was main prevalent in the southern and southwestern part of China (Jiangxi, Guangxi, Guangdong, Sichuan, Fujian, Chongqing and Hainan), with 5.00% prevalence and greater, and the highest prevalence was seen in Jiangxi and Guangxi for successive 3 years. In addition, the prevalence of infections was higher in children with the Han ethnicity than in those with the minority ethnicity, and a high prevalence was found in children at ages of 4 to 7 years, and a low prevalence seen in children at ages of 3, 8 and 9 years.
The prevalences of infections have not changed much among children at ages of 3 to 9 years in China from 2016 to 2018, and high prevalence is seen in southern and southwestern China, which should be given a high priority.
了解我国3至9岁儿童肠道线虫感染流行状况，为制定蛲虫病防控策略提供科学依据。
2016年至2018年在我国30个省（直辖市/自治区）的736个国家监测点（县）开展全国肠道线虫病监测。所有监测点按地理方位分为东、西、南、北、中5个片区，每个片区随机抽取1个乡，再从该乡随机抽取1个行政村，采用整群抽样方法从该行政村中随机抽取200名3岁以上常住人口。每个监测点共检查1000人。采用改良加藤厚涂片法和透明胶纸肛拭法对3至9岁儿童进行肠道线虫感染检测，并计算和比较感染率。
2016年至2018年我国30个省（直辖市/自治区）736个监测点3至9岁儿童肠道线虫感染率分别为2.50%、2.84%和2.46%，不同性别间肠道线虫感染率差异无统计学意义（P>0.05）。蛲虫病主要流行于我国南部和西南部地区（江西、广西、广东、四川、福建、重庆和海南），感染率≥5.00%，其中江西和广西连续3年感染率最高。此外，汉族儿童肠道线虫感染率高于少数民族儿童，4至7岁儿童感染率较高，3岁、8岁和9岁儿童感染率较低。
2016年至2018年我国3至9岁儿童肠道线虫感染率变化不大，南部和西南部地区感染率较高，应重点关注。
