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H7N9型禽流感病毒自2013年2—3月首次在中国上海地区发现感染发病至今,已经有763人确诊感染,分布于20省(市)。763名患者中,老年人占绝大部分,且男性多于女性;其中310人死亡,死亡率达到40.6%,引起了全球关注。本文就该病毒的病原学、流行病学、致病性和病毒的溯源以及预防和控制措施等方面的研究现状进行综述,为H7N9禽流感的防控提供参考。
The H7N9 bird flu virus has been diagnosed for the first time in Shanghai, China, from February to March 2013 so far. There are already 763 confirmed infections in 20 provinces (municipalities). 763 patients, the elderly accounted for the vast majority, and more men than women; of which 310 were killed and the mortality rate reached 40.6%, causing global concern. This article reviews the research status of the etiology, epidemiology, traceability and virus of the virus and the prevention and control measures of the virus so as to provide references for the prevention and control of H7N9 bird flu.