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目的调查芜湖地区是否存在台湾次睾吸虫的自然疫源地。方法现场调查生态环境与居民日常生活习惯;采用水洗沉淀法检验当地居民饲养的家鸭粪便中的台湾次睾吸虫虫卵;采用压片法分离纹沼螺体内的雷蚴、尾蚴;采用匀浆法分离麦穗鱼体内的囊蚴;采取直接喂入方法用台湾次睾吸虫囊蚴或含囊蚴的麦穗鱼人工感染雏鸭;解剖家鸭的胆囊和胆管,分离台湾次睾吸虫成虫。结果本次调查结果显示,该区域湖河(江)交错,植被丰富,灌木杂草丛生,水生植物、淡水螺类和鱼类资源丰富,是家鸭养殖和多种水鸟适宜的栖息地。家鸭粪便中台湾次睾吸虫卵的平均检出率为33.33%(10/30);纹沼螺体内台湾次睾吸虫雷蚴和尾蚴的检出率为1.17%(7/600);麦穗鱼体内囊蚴的检出率为13.33%(8/60);人工感染的3组雏鸭中,第一组和第二组分别检出台湾次睾吸虫成虫31条和8条,第三组未检出;家鸭自然感染台湾次睾吸虫的感染率为23.33%(7/30)。结论芜湖地区有台湾次睾吸虫流行,该地区是适宜台湾次睾吸虫流行的自然疫源地。
Objective To investigate whether there is a natural foci in the area of Wuhu in Taiwan. Methods On-site investigation of ecological environment and daily living habits of residents; Wash-precipitation method was used to test the eggs of Taiwan’s sub-testis in the excrement of domestic duck feces; the use of tabletting method to isolate Echinococcus granulosus and cercariae; Method to separate the metacercariae in the body of wheat spawn; artificially infecting the ducklings with the metacercariae of Taiwan or metacercariae; using the direct feeding method to dissect the gallbladder and bile duct of the duck and to separate the adults of the testis in Taiwan. Results The results of this survey show that the lakes and rivers of this region are intertwined with rich vegetation, shrub weeds, aquatic plants, freshwater snails and fish rich in resources. It is a suitable habitat for domestic duck breeding and many waterbirds. The average detection rate of tinea of testa in Taiwan was 33.33% (10/30). The detection rate of tinea of Taiwan erythrococcus suis and cercaria was 1.17% (7/600) The detection rate of metacercariae in the spike fish was 13.33% (8/60). Among the 3 groups of artificial infected ducklings, 31 and 8 adult clonorchis sinensis were detected in the first and second groups respectively. The third In the ducks, the infection rate of natural testis in Taiwan was 23.33% (7/30). Conclusion There is a prevalence of Mycoplasma gondii in the Wuhu area, which is a natural foci suitable for the epidemic of the testicles of Clonorchis sinensis in Taiwan.