广州市番禺地区褐云玛瑙螺和福寿螺广州管圆线虫感染情况调查  

Investigation on snails Achatina fulica and Pomacea canaliculata infected with Angiostrongylus cantonensis in Panyu region of Guangzhou City

作　　者：陈楚炫[1] 何惠芳[1] 殷竹[1] 周锦桓[1] 李诗群[1] 李芳慧[1] 陈炯民[1] 朱伟金[1] 钟秀明[1] 杨凯莹[1] 刘桂平[1] 贾洵[1] 陈婉彤[1] 李晓梅[1] 陈玉嫦[1] 罗晓东[2] 陈代雄[2] 沈浩贤[2] 

机构地区：[1]广州医学院第三临床学院,广州510182 [2]广州医学院基础学院病原生物学教研室

出　　处：《中国血吸虫病防治杂志》2012年第3期336-338,共3页Chinese Journal of Schistosomiasis Control

基　　金：广东省科技计划项目(2011B031500013);广东省广州市教育局科研项目(10A181)

摘　　要：目的了解广州市番禺地区褐云玛瑙螺和福寿螺广州管圆线虫感染情况。方法用人工胃液消化法对采集到的褐云玛瑙螺和福寿螺进行处理,镜下观察和计数广州管圆线虫第3期幼虫,比较不同地区、不同螺种的感染率和感染度;将螺体内检获的幼虫感染健康SD大鼠并解剖,以验证之前的检查结果。结果共检测褐云玛瑙螺367只,福寿螺357只,其中褐云玛瑙螺广州管圆线虫感染率为22.62%,阳性螺感染度为57.00条/螺;福寿螺感染率为3.08%,阳性螺感染度为1.64条/螺。大岗、石碁、化龙、榄核4镇和南沙区褐云玛瑙螺广州管圆线虫感染率分别为13.33%、15.00%、20.93%、73.68%和8.41%,福寿螺感染率分别为5.88%、2.88%、1.89%、0%和3.96%。结论番禺地区褐云玛瑙螺和福寿螺均存在广州管圆线虫感染,且以褐云玛瑙螺感染较为严重。不同调查区域间螺的感染情况亦存在一定差异。Objective To understand the natural infection status ofAngiostrongylus cantonensis in snails Achatinafulica and Pomacea canaliculata from Panyu region of Guangzhou City. Methods The snails Achatinafulica and Pomacea canaliculata cap- tured from the field were digested with the artificial stomach fluid. The third-stage larvae of A. cantonensis were examined and counted under a microscope. The collected third-stage larvae were used to infect SD rats. Results A total of 367 Achatinafulica and 357 Pomacea canaliculata were examined. The infection rate ofA. cantonensis in Achatinafulica was 22.62%, with a mean in- tensity of 57.00 larvae per positive snail. The infection rate ofA. cantonensis in Pomacea canaliculata was 3.08%, with a mean in- tensity of 1.64 larvae per positive snail. The infection rates of A. cantonensis in Achatinafulica from Dagang, Shiqi, Hualong, and Lanhe towns and Nansha District, were 13.33%, 15.00%, 20.93%, 73.68% and 8.41%, respectively. Those in Pomacea canalic- ulata were 5.88%, 2.88%, 1.89%, 0% and 3.96%, respectively. Conclusions A. cantonensis infection exists in Achatinafulica and Pomacea canaliculata from Panyu region of Guangzhou City, and the infection in Achatinafulica is more serious than that in Pornacea canaliculata. The infection rates of the snails among five sites are different.

关 键 词：褐云玛瑙螺 福寿螺 广州管圆线虫 番禺地区 

分 类 号：R532.1[医药卫生—内科学]