阜阳市首例人感染H7N9禽流感病例流行病学调查

Investigation of the first case of human infection with avian influenza A (H7N9) in Fuyang City

目的通过对1例人感染H7N9禽流感病例的调查分析,探索现场流行病学调查在人禽流感疫情应急处置中的应用状况。方法对1例人感染H7N9禽流感确诊病例开展流行病学调查,对其密切接触者进行追踪和医学观察,采用RT-PCR法对核酸进行亚型的鉴定。结果患者为实验室确诊病例,发病前有禽类暴露史,感染来源可能是接触了来自人感染H7N9禽流感疫区的禽类。结论暴露在活禽贩卖宰杀市场可能是感染的危险因素,从人感染H7N9禽流感疫区输入禽类也加大了发生病例的风险。

Objective Based on the investigation and analysis of the first case of human infection with avian influenza A （ H7N9 ） , to study the application effect of field epidemiology on emergency disposal about human infection with avian influenza. Methods Epidemiological investigation was carried out on a case of human infection with avian influenza A （ H7N9 ） , and his close contacts were observed medically. The subtype of viral nucleic acid was identified by RT - PCR. Resuits The patient was a confirmed cases of avian influenza A （ H7N9 ）. Before onset of the disease, the patient had been exposed to the poultry. Exposed to poultry from H7N9 affected areas may be the infected source. Conclusion Being fxposed to live poultry markets may be the infected risk factor, and importing poultry from H7N9 affected areas raised the risk.