广西南宁市市售蛙和蛇感染裂头蚴情况的调查

Investigation on Plerocercoid Infection in Frogs and Snakes in Nanning Guangxi

为了解广西壮族自治区南宁市市售蛙和蛇体内裂头蚴的感染情况，2011年11月至2012年10月，在南宁各农贸市场购买632只蛙（其中泽蛙617只，其他蛙类15只）、158条蛇（其中眼镜蛇49条，滑鼠蛇105条，其他蛇类4条），逐只（条）用蠕虫学完全剖检术检查裂头蚴感染情况，随机取一次收集的裂头蚴感染试验动物猫，待裂头蚴发育至成虫阶段后，对成虫的形态学特征进行观察以鉴定。结果表明，蛙裂头蚴平均感染率为10．92％，其中泽蛙感染率为11．18％，感染强度为1条～24条，其他蛙感染率为0；蛇裂头蚴平均感染率为22．15％，其中眼镜蛇、滑鼠蛇、其他蛇类感染率分别为8．16％、29．52％和0，感染强度分别1条、1条～208条和0。剖检试验动物猫后可收集到成虫的10个头节，经鉴定为欧猥迭宫绦虫（Spirometra erinaceieuropaei）。结果表明，南宁市市售蛙、蛇均存在一定数量的裂头蚴感染，且感染率较高，感染强度大，存在一定的食品安全隐患。

The prevalence of plerocercoid infection in frogs and snakes was investigated in Nanning of Guangxi , China .During the period of November 2011 to September 2012 ,632 frogs and 158 snakes were bought from mar-kets in Nanning and examined for the infection of plerocercoids .The examined frogs consisted of 617 Rana limno-charis and 15 other species ,while the examined snakes consisted of 49 Naj a atra ,105 Ptyas mucosus and 4 other species .Cats were infected with collected plerocercoids for obtaining the adult worms .The average infection rate in frogs was 10 .92% and the infection rate in R .limnocharis was 11 .18% .The infection intensity in frogs was 1-24 plerocercoids per frog .The average infection rate in snakes was 22 .15% ,and the infection rate in N .atra ,P .mu-cosus and the other species were 8 .16% ,29 .52% and 0 ,respectively .The infection intensity in N .atra and P . mucosus were 1 and 1-208 plerocercoids per snake ,respectively .The adult worms collected form cats were identi-fied as Spirometra erinaceieuropaei .The infection rate of plerocercoids in frogs and snakes in Nanning is high , w hich poses a threat to the health of local people .