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Novel human H7N9 influenza virus in China |
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| Authors: | Chengmin WANG Jing LUO Jing WANG Wen SU Shanshan GAO Min ZHANG Li XIE Hua DING Shelan LIU Xiaodong LIU Yu CHEN Yaxiong JIA Hongxuan HE |
| Affiliation: | 1. National Research Center for Wildlife Borne Diseases, Institute of Zoology, Chinese Academy of Sciences, , Beijing, China;2. Department of Infectious Diseases, Hangzhou Center for Disease Control and Prevention, , Hangzhou, China;3. Department of Infectious Diseases, Zhejiang Center for Disease Control and Prevention, , Hangzhou, China;4. Beijing Animal Husbandry and Veterinary Station, , Beijing, China |
| Abstract: | Outbreaks of H7N9 avian influenza in humans in 5 provinces and 2 municipalities of China have reawakened concern that avian influenza viruses may again cross species barriers to infect the human population and thereby initiate a new influenza pandemic. Evolutionary analysis shows that human H7N9 influenza viruses originated from the H9N2, H7N3 and H11N9 avian viruses, and that it is as a novel reassortment influenza virus. This article reviews current knowledge on 11 subtypes of influenza A virus from human which can cause human infections. |
| Keywords: | China H7N9 human influenza virus |