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目的 了解贵州省9城市市场及餐饮场所出售的食用螺广州管圆线虫感染状况.方法 2012年采集贵州省9城市(贵阳市、遵义市、铜仁市、凯里市、安顺市、都匀市、兴义市、毕节市、水城市)水产批发市场、农产品集市或餐饮场所出售的食用螺并分类,采用匀浆法(其中,福寿螺先用肺检法初筛,再用匀浆法复检)处理后于镜下查找广州管圆线虫Ⅲ期幼虫并计算感染率.结果 共采集2 177只食用螺,广州管圆线虫总感染率为1.5％(32/2 177).其中,福寿螺1 287只,检出阳性5只,感染率为0.4％;褐云玛瑙螺240只,检出阳性27只,感染率为11.3％;铜锈环棱螺372只,中国圆田螺278只,均未检出阳性.结论 贵州省市场及餐饮场所出售的褐云玛瑙螺和福寿螺存在广州管圆线虫Ⅲ期幼虫感染,食用人群致病风险较高,须加强市售食用螺的卫生监测和公众健康教育.“,”Objective To investigate the infection status of A ngiostrongylus cantonensis in winkle from 9 cities in Guizhou Province.Methods The winkles were collected randomly from aquatic products wholesale market,agricultural market or restaurants in 9 cities (Guiyang,Zunyi,Tongren,Kaili,Anshun,Duyun,Xingyi,Bijie and Shuicheng) and classified in Guizhou Province,and the third-stage larvas of Angiostrongylus cantonensis were separated and detected with microscopy by tissue homogenization (Pomacea canaliculata was first checked with lung screening method,and then rechecked by tissue homogenization),and infection rate was calculated.Results Totally 2 177 winkles were tested,the overall infection rate of Angiostrongylus cantonensis was 1.5％ (32/2 177),among them,Pomacea canaliculata was 1 287,five was positive,and the infection rate was 0.4％; Achatinafulica was 240,positive 27,the infection rate was 11.3％; Bellamya lithophaga was 372 and all 278 Cipangopaludina chinensis was not positive.Conclusions There is a higher risk of infection with Angiostrongylus cantonensis if eating winkles.The third-stage larva in Pomacea canaliculata and Achatina fulica has been found in Guizhou Province.Market management,food-safety inspection of the winkles on sale,and public health education should be strengthened.