湖南省发现的首例发热伴血小板减少综合征病例流行病学调查分析

Epidemiologic survey of the first reported case of severe fever with thrombocytopenia syndrome in Hunan

目的调查病例感染途径,了解病例居住地流行情况,为湖南省制定发热伴血小板减少综合征防控对策提供依据。方法现场流行病学调查和血清流行病学调查方法。结果患者发病前有可疑蜱叮咬史;病例居住地居民、牛、羊IgG抗体阳性率分别6.9%、66.7%和100.0%;所捉蜱核酸检测阴性;病例搜索未发现其他病例。结论湖南省局部地区存在发热伴血小板减少综合征流行,应加大监测和防控力度。

Objective To understand the transmission route of the first case of severe fever with thrombocytopenia syndrome in Hunan and the local incidence of severe fever with thrombocytopenia syndrome in the area where the first case lived for the purpose of providing evidence for the prevention and control of severe fever with thrombocytopenia syndrome. Methods Field epidemiologic and serologic surveys were conducted. Results The case had possible tick exposure history before the onset. The Ig G positive rates in the local residents,cattle and goats were 6. 9%,66. 7% and100. 0%,respectively,and the result of nucleic acid test for the ticks collected was negative. No additional cases were found. Conclusion Severe fever with thrombocytopenia syndrome was endemic in some areas of Hunan province. The surveillance and prevention targeting risk population should be strengthened.