大理市市售福寿螺广州管圆线虫感染监测报告

Report on surveillance of Pomacea canaliculata infected with Angiostrongylus cantonensis on sale in Dali

从大理市泰兴农贸市场随机抽取在售的福寿螺,用肺检法检测广州管圆线虫幼虫。共采集福寿螺32次,62份样品,其中24份阳性,阳性率38.71%;检查福寿螺4 708只,其中68只感染广州管圆线虫,感染率1.44%。福寿螺主要来源于瑞丽和洱源。大理州存在着广州管圆线虫病流行的危险因素,应加强食品流通中的卫生监测及公众的健康教育;并进一步做好大理市广州管圆线虫自然疫源地调查。

Specimens of Pomacea canaliculata on sale at the Taixing Farmers Market in Dali were randomly selected and lung microscopy was used to detect Angiostrongylus cantonensis.P.canaliculata was collected 32 times to provide 62 specimens.P.canaliculata tested positive for A.cantonensis infection at a rate of 38.71%（24/62 specimens）.Of 4 708 P.canaliculata tested,only 68 were infected with A.cantonensis at a rate of 1.44%.P.canaliculata were mainly from Ruili and Eryuan.The City of Dali has risk factors for the widespread prevalence of A.cantonensis.Monitoring of sanitation during food distribution and public health education should be enhanced and focused investigations must be performed.Accurately determining whether the City of Dali is a natural focus of A.cantonensis infection is crucial.