2019—2023年山西省土源性线虫感染监测结果分析  

Analysis on the surveillance of soil-transmitted nematode infection in Shanxi Province from 2019 to 2023

作　　者：王晶莹 帖萍[1] 郑玉华[1] 白永飞[1] 王婷[1] 王三桃[1] WANG Jingying;TIE Ping;ZHENG Yuhua;BAI Yongfei;WANG Ting;WANG Santao(Shanxi Provincial Center for Disease Control and Prevention,Taiyuan 030012,Shanxi,China)

机构地区：[1]山西省疾病预防控制中心,山西太原030012

出　　处：《中国寄生虫学与寄生虫病杂志》2024年第5期629-634,641,共7页Chinese Journal of Parasitology and Parasitic Diseases

摘　　要：目的 分析2019—2023年山西省土源性线虫感染情况,了解其流行现状和趋势,为制定土源性线虫病防治策略提供科学依据。方法 2019—2023年,按照《全国肝吸虫病和土源性线虫病监测方案(试行)》的要求,山西省分别选取14、18、15、18、18个监测县(共79个不同的县,2021—2023年各有2个固定监测县),每个监测县按照东、南、西、北、中5个地理方位划片,每片区随机抽取1个乡(镇、街道)的1个行政村开展监测工作,每个行政村以3周岁及以上常住居民为调查对象,整群抽取人数不少于200人。采集调查对象粪样不少于30 g,采用改良加藤厚涂片法(Kato-Katz法,一粪两检)镜检土源性线虫虫卵,计算感染率。对钩虫阳性的粪样采用试管滤纸培养法进行虫种鉴定。对3~9周岁儿童采用透明胶纸肛拭法加做蛲虫虫卵镜检。感染率的比较采用χ^(2)检验。结果2019—2023年,山西省监测人群土源性线虫感染率分别为0.05%(7/14 189)、0.05%(9/18 019)、0.12%(18/15 024)、0 (0/18 109)、0.11%(21/18 383),不同年份间感染率差异有统计学意义(χ^(2)=26.464,P <0.01)。2019—2023年,蛔虫感染率分别为0.02%(3/14 189)、0.01%(1/18 019)、0 (0/15 024)、0 (0/18 109)、0.04%(8/18 383);蛲虫感染率分别为0.02%(3/14 189)、0.04%(8/18 019)、0.12%(18/15 024)、0 (0/18 109)、0.07%(13/18 383)。蛔虫、蛲虫不同年份间感染率差异有统计学意义(χ^(2)=13.586、27.674,均P <0.01)。2019年鞭虫感染率为0.007%(1/14 189),其余年份感染率均为0。2019—2023年,均未查出钩虫感染。2019—2023年,男、女性土源性线虫平均感染率分别为0.07%(30/40 707)、0.06%(25/43 017),差异无统计学意义(χ^(2)=0.773,P> 0.05);各年龄组中土源性线虫平均感染率最高的为3~9岁组(0.30%,30/9 913),其次为50~59岁组(0.05%,8/14 828)和20~29岁组(0.05%,3/5 938),不同年龄组间的差异有统计学意义(χ^(2)=98.579,P <0.01);不同职业人群中散居儿童土源性线虫�ObjectiveTo analyze the surveillance of soil-transmitted nematode(STN) infection in Shanxi Province from 2019 to 2023,to understand its current status and trends,providing scientific basis for developing control strategies.MethodsFrom 2019 to 2023,in accordance with the requirements of the National Surveillance Program and Implementation Guideline for Clonorchiasis and Soil-transmitted Nematodes,in different regions of Shanxi Province,14,18,15,18,and 18 counties were selected for the surveillance,respectively.Each selected surveillance county was divided into five geographic sectors(east,south,west,north,and center).From each sector,one township(town,street) was randomly selected,and subsequently,one administrative village was chosen from each selected township for the surveillance.In each selected village,the participants were cluster sampled,with no less 200 villigers for the survey.Fecal samples of no less than 30 g were collected from the participants,and examined microscopically using the modified Kato-Katz thick smear method(two slide-reading,each sample) for STN eggs to calculate the infection rate.Hookworm egg positive fecal samples were further examined using the test tube-filter paper cultivation method to identify the parasite species.Additionally,microscopic-detection of Enterobius vermicularis eggs was conducted in children aged 3 to 9 using the transparent adhesive paper anal swab method.χ^(2)test was employed to compare infection rates.ResultsFrom 2019 to 2023,the infection rates of STN in the surveillance population in Shanxi Province were0.05%(7/14 189),0.05%(9/18 019),0.12%(18/15 024),0(0/18 109),and 0.11%(21/18 383),respectively.There were statistically significant differences in infection rates between years(χ^(2)= 26.464,P < 0.01).During this period,the infection rates of Ascaris lumbricoides were 0.02%(3/14 189),0.01%(1/18 019),0(0/15 024),0(0/18 109),0.04%(8/18 383);and the infection rates of E.vermicularis were 0.02%(3/14 189),0.04%(8/18 019),0.12%(18/15 024),0(0/18 109),0.07%(13/18 383)

关 键 词：土源性线虫 感染 监测县 山西省 

分 类 号：R532.1[医药卫生—内科学]