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目的调查发热伴血小板减少综合征(SFTS)疫情传播媒介的种群分布及其可疑宿主的感染情况。方法于2016年6月14-18日,采用人工布旗法和动物体表法,在苏州市吴中区光福镇窑上村SFTS患者住处周围及其经常劳作场所附近环境采集游离蜱和寄生蜱,鼠笼法捕获小兽,取其血清、心、肝、脾、肺、肾和脑标本,利用实时荧光PCR法检测发热伴血小板减少综合征病毒(SFTSV)核酸。结果共采集蜱4种100只,其中中华血蜱、褐黄血蜱和长角血蜱为优势蜱种,分别占捕获总数的37.00%、29.00%和26.00%。捕获小兽17只,其中啮齿动物3种、食虫动物和猬形动物各1种。蜱及小兽标本SFTSV的核酸经检测均为阴性。结论江苏省苏州市具有SFTSV媒介蜱及相关宿主动物的分布,但其传播媒介和动物宿主间的传病机制有待进一步研究。
Objective To investigate the population distribution of fever and thrombocytopenia syndrome (SFTS) outbreak vectors and the suspicious host infection. Methods From June 14 to June 18, 2016, artificial ticking method and animal body surface method were used to collect free ticks and parasitic ticks in the surroundings of the residence of SFTS patients in Kou Shang Village, Guangfu Town, Wuzhong District, Suzhou City, The small mammals were captured by the squirrel cage, and the serum, heart, liver, spleen, lung, kidney and brain samples were taken for detection of fever with thrombocytopenic syndrome virus (SFTSV) nucleic acid by real-time fluorescence PCR. Results A total of 100 ticks were collected, of which 100 were tick-borne, ticks, and ticks, accounting for 37.00%, 29.00% and 26.00% of the total catch, respectively. 17 small animals captured, including 3 rodents, insectivorous animals and 1 species of hedgehog-shaped animals. The nucleic acids of ticks and small mammals SFTSV were all negative. Conclusion The distribution of SFTSV ticks and related host animals in Suzhou City, Jiangsu Province, is still under investigation. However, the mechanism of transmission between the vectors and animal hosts remains to be further studied.