Prevalence of Angiostrongylus cantonensis infection in snails for sale in select regions of Yunnan Province from 2019 to 2023
10.3969/j.issn.1002-2694.2024.00.143
- VernacularTitle: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
- Author:
Yi-Shan CHEN
1
;
Hong TAO
;
Yan-Zhong LI
;
Jing-Jing YANG
;
Ting-Ting WANG
;
Juan ZHANG
;
Meng CHEN
;
Xiao-Mei ZHOU
Author Information
1. 云南省疾病预防控制中心,昆明 650022
- Keywords:
snails;
Angiostrongylus cantonensis;
infection rate
- From:
Chinese Journal of Zoonoses
2024;40(10):984-988
- CountryChina
- Language:Chinese
-
Abstract:
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 1 584 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 re-gions 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,in-creased education,environmental improvement,and deratization deratize are necessary.Moreover,molecular biological detec-tion provides a sensitive tool for the prevention and control of A.cantonensis.
