宁波市人感染H7N9禽流感病例流行病学及临床特征分析

Epidemiological and clinical characteristics of the human cases with novel influenza A(H7N9)virus infection in Ningbo,China

目的了解2014年宁波市人感染H7N9禽流感的流行特征和临床特点。方法采用流行病学个案调查与描述性分析方法。结果 2014年宁波市共确诊H7N9禽流感病例15例,死亡4例;病例发病前均有禽类暴露史;103名密切接触者均未感染;大部分病例有慢性基础性疾病。结论老年男性人群为H7N9禽流感发病的主要人群,加强人群及外环境监测是防控H7N9工作的重点。

To realize the epidemiological and clinical characteristics of human infection with avian influenza A（H7N9）virus,case survey and descriptive method were used.The results showed that 15 persons were confirmed with H7N9 infection,including 4deaths.All of the cases admitted to have had a history of exposure to poultry.All samples collected from close contacts of the patients were negative.Our study showed that the majority of confirmed cases were among the aged males.Strengthening monitoring in the people and environment was the key work for prevention and control H7N9 virus.