2009-2011年吉林长白口岸中朝边境啮齿动物及其感染汉坦病毒跨境调查研究

Study on the Ectoparasite and Hantavirus of rodent infection at Changbai Port in Jilin province across the Sino-North Korean boundary

目的调查吉林中朝边境口岸地区啮齿动物及其体表寄生虫的种类、构成和携带汉坦病毒的情况。方法 2009年至2011年,在吉林省长白口岸和朝鲜惠山口岸地区,以夹夜法捕鼠,梳刷法采集鼠体表寄生虫,取鼠血、肺、肝、肾、脾脏组织。采集样本送中国检验检疫科学研究院做汉坦病毒抗原检测。结果在吉林长白口岸地区共捕获啮齿动物336只,隶属于1目2科6属9种,其中黑线姬鼠为优势鼠种,占捕鼠总数的67.26%;检蚤302匹,染蚤率为28.87%,蚤指数为0.90;检螨978只,染螨率为61.90%,螨指数为2.91;获得有效样本190份,检出汉坦病毒阳性7份,阳性率为3.68%。在朝鲜惠山口岸地区共捕获啮齿动物96只,隶属于1目3科4属5种,其中褐家鼠为优势鼠种,占捕鼠总数的79.17%;检蚤141匹,染蚤率为53.13%,蚤指数为1.47;检螨153只,染螨率为51.04%,螨指数为1.59;获得有效样本96份,检出汉坦病毒阳性10份,阳性率为10.42%。结论应进一步加强中朝边境长白口岸地区啮齿动物防治和鼠类肾综合征出血热监测,防止肾综合征出血热的传播和流行。

Objective To investigate the rodent species, ince along the Sino North Korean boundary. Methods the ectoparasite and Hantavirus they carried in Jilin prov From 2009 to 2011, rats were caught by snap trap and the parasitic fleas were collected by combs at Changbai Port in Jilin province and Huishan Port in North Korea. The rats＇blood, lung, liver, kidney and spleen specimens were provided to Chinese Academy of Inspection and Quaran tine for Hantavirus detection. Results A total of 336 rodents were caught at the port of Changbai, which belong to 1 order, 2 families, 6 genera and 9 species. The Apodemus agrarius was the dominate specie, accounting for 67.26%. 302 fleas and 978 mites were found on rats. Flea infected rate from rodents was 28.87% ,index of fleas was 0.90. Mite infected rate from rodents was 61.90% ,index of fleas was 2.91. A total of 190 samples of the liv er,lung, kidney tissue and blood were obtained, while 7 samples were found positive of Hantavirus, with a rate of 3.68%. A total of 96 rodent animals were caught at the port of Huishan, which belong to 1 order, 3 families, 4 genera and 5 species. The Rattus norvegicus was the dominate specie, accounting for 79.17%. 141 fleas and 153 mites were found on rats. Flea infected rate was 53.13%, and the index of fleas was 1.47. Mite infected rate was 51.04%, and the index of mite was 1.59. A total of 96 samples of the liver,lung, kidney tissue and blood were obtained, while 10 samples were found positive of Hantavirus, with a rate of 10.42%. Conclusion It is important to further strengthen prevention and control of the rodents and surveillance of the Hemorrhagic fever epidemic.