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目的了解广东省江门市不同年份褐云玛瑙螺广州管圆线虫感染情况的动态变化。方法采用人工消化法对从江门市郊采集的褐云玛瑙螺进行处理,并镜检其中的广州管圆线虫第3期幼虫。结果三年共检查褐云玛瑙螺1127只,其广州管圆线虫的平均感染率约为41.26%,阳性螺平均感染度约为53.42。2006-2008年的每年10月份对褐云玛瑙螺进行检查,其广州管圆线虫的感染率分别为41.94%、51.30%和33.07%。此外发现2006年10月中旬和12月中旬江门褐云玛瑙螺广州管圆线虫的感染率分别为41.94%和38.20%。结论江门市褐云玛瑙螺广州管圆线虫感染率存在年度间的波动变化。而同一年的不同月份感染率也可能有所不同。
Objective To understand the dynamic changes of infection of Anephrodis trichocalyca in different years in Jiangmen City, Guangdong Province. Methods Artificial digestion method was used to deal with the brown snakehead snake collected from the outskirts of Jiangmen and the third larvae of C. elegans were examined microscopically. Results A total of 1127 Anemone gracilis were examined in three years, with an average infection rate of 41.26% and an average positive infection rate of 53. 42. In 2006-2008, The infection rates of A. cantonensis were 41.94%, 51.30% and 33.07%, respectively. In addition, it was found that the infection rates of A. cantonensis from the mid-October 2006 and mid-December 2006 were 41.94% and 38.20%, respectively. Conclusions The infection rate of Anemarrhena asiatica in Jiangmen City fluctuates from year to year. Infection rates in different months of the same year may also vary.