Human infection with avian influenza A(H7N9) virus re-emerges in China in winter 2013

Author:

Chen E12,Chen Y21,Fu L31,Chen Z2,Gong Z2,Mao H2,Wang D4,Ni M Y5,Wu P5,Yu Z2,He T3,Li Z2,Gao J2,Liu S2,Shu Y4,Cowling B J5,Xia S2,Yu H6

Affiliation:

1. These authors contributed equally to this work

2. Department of Infectious Diseases, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, Zhejiang Province, China

3. Department of Infectious Diseases, Shaoxing Centre for Disease Control and Prevention, Shaoxing, Zhejiang Province, China

4. National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China

5. School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China

6. Division of Infectious Disease, Key Laboratory of Surveillance and Early-warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing, China

Abstract

Through a national surveillance system for unexplained pneumonia, a severe case of influenza A(H7N9) in a man in his mid-30s was identified in Zhejiang Province, China on 14 October 2013. Epidemiological and clinical findings were consistent with the patterns reported during the outbreak in spring 2013, and laboratory findings showed that the virus had 99.6% identity with earlier H7N9 viruses identified in humans in the spring except for five mutations in the NA gene.

Publisher

European Centre for Disease Control and Prevention (ECDC)

Subject

Virology,Public Health, Environmental and Occupational Health,Epidemiology

Reference11 articles.

1. Number of confirmed human cases of avian influenza A(H7N9) reported to WHO. Geneva: World Health Organization. [Accessed 12 Aug 2013]. Available from: http://www.who.int/influenza/human_animal_interface/influenza_h7n9/09_ReportWebH7N9Number.pdf

2. Epidemiological, clinical and viral characteristics of fatal cases of human avian influenza A (H7N9) virus in Zhejiang Province, China

3. National Health and Family Planning Commission of China. Chinese guideline for diagnosis and treatment in human infection with H7N9 avian flu (2nd edition of 2013). Beijing: Chinese Center for Disease Control and Prevention. [Accessed Jun 2013]. Chinese. Available from: http://www.chinacdc.cn/jkzt/crb/rgrgzbxqlg_5295/rgrglgyh/201304/t20130411_79740.htm

4. Epidemiology of Human Infections with Avian Influenza A(H7N9) Virus in China

5. Human Infection with a Novel Avian-Origin Influenza A (H7N9) Virus

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