2019-2023年云南省部分地区市售螺类广州管圆线虫感染情况调查  

Prevalence of Angiostrongylus cantonensis infection in snails for sale in select regions of Yunnan Province from 2019 to 2023

作　　者：陈奕杉 陶洪[1] 李彦忠[1] 杨晶晶 王婷婷 张娟 陈萌 周晓梅[1] CHEN Yi-shan;TAO Hong;LI Yan-zhong;YANG Jing-jing;WANG Ting-ting;ZHANG Juan;CHEN Meng;ZHOU Xiao-mei(Yunnan Center for Diseaes Control and Prevention,Kunming 650022,China)

机构地区：[1]云南省疾病预防控制中心,昆明650022

出　　处：《中国人兽共患病学报》2024年第10期984-988,共5页Chinese Journal of Zoonoses

摘　　要：目的了解云南省部分地区市售螺体内广州管圆线虫的感染情况和特点。方法2019-2023年每年4-9月在13个州市采集市售鲜活螺,用胃蛋白酶消化法检测广州管圆线虫Ⅲ期幼虫。结果共检查1584份活螺样本,螺类的广州管圆线虫的感染率为3.66%。不同螺类的感染率由高到低分别为福寿螺(6.41%)、中华圆田螺(2.74%)、环棱螺(2.56%)。除福寿螺外,其它螺类的广州管圆线虫的感染率呈逐年下降趋势。7月份的螺类广州管圆线虫的感染率最高(7.87%)。除楚雄未检出阳性样品,其余12个州市均有阳性螺,其中红河州的螺类广州圆线虫感染率高达9.52%。结论云南省部分地区市售螺类仍然有广州管圆线虫的感染,存在食品安全风险隐患。需继续加强监管工作,加大宣传,改善环境,开展灭鼠工作,同时开展分子生物学检测技术应用研究,为广州管圆线虫病的防控提供更加敏感的监测方法。This study was aimed at investigating the prevalence and characteristics of Angiostrongylus cantonensis infection in snails for sale in select regions of Yunnan Province between April and September in 2019-2023.A total of 1584 snails were collected from 13 regions,and third stage larvae with A.cantonensis infection were identified with the digestion method.The A.cantonensis infection rate in snails was 3.66%.The infection rate of Pomacea canaliculata was highest(6.41%),that of Cipangopaludina cathayensis was 2.74%,and that of Bellamya aeruginosa was 2.56%.The A.cantonensis infection rate in each snail species decreased each year,except in P.canaliculata.The A.cantonensis infection rate was highest in July(7.87%).Snails infected with A.cantonensis were found in regions except Chuxiong.The highest infection rate in these 12 regions occurred in Honghe(9.52%).In conclusion,A.cantonensis infection was identified in snails for sale in select areas of Yunnan province,thus posing hidden food safety risks.Strengthened supervision and management of snail food products,increased education,environmental improvement,and deratization deratize are necessary.Moreover,molecular biological detection provides a sensitive tool for the prevention and control of A.cantonensis.

关 键 词：螺类 广州管圆线虫 感染率 

分 类 号：R383.1[医药卫生—医学寄生虫学]