Epidemiology, Evolution, and Pathogenesis of H7N9 Influenza Viruses in Five Epidemic Waves since 2013 in China

Su Shuo; Gu Min; Liu Di; Cui Jie; Gao George F.; Zhou Jiyong; Liu Xiufan

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Epidemiology, Evolution, and Pathogenesis of H7N9 Influenza Viruses in Five Epidemic Waves since 2013 in China

机译：自2013年以来五次流行波H7N9流感病毒的流行病学，演化和发病机制

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H7N9 influenza viruses were first isolated in 2013 and continue to cause human infections. H7N9 infections represent an ongoing public health threat that has resulted in 1344 cases with 511 deaths as of April 9, 2017. This highlights the continued threat posed by the current poultry trade and live poultry market system in China. Until now, there have been five H7N9 influenza epidemic waves in China; however, the steep increase in the number of humans infected with H7N9 viruses observed in the fifth wave, beginning in October 2016, the spread into western provinces, and the emergence of highly pathogenic (HP) H7N9 influenza outbreaks in chickens and infection in humans have caused domestic and international concern. In this review, we summarize and compare the different waves of H7N9 regarding their epidemiology, pathogenesis, evolution, and characteristic features, and speculate on factors behind the recent increase in the number of human cases and sudden outbreaks in chickens. The continuous evolution of the virus poses a long-term threat to public health and the poultry industry, and thus it is imperative to strengthen prevention and control strategies.

机译：H7N9流感病毒于2013年首次分离，并继续导致人类感染。H7N9感染是一种持续的公共卫生威胁，截至2017年4月9日，已导致1344例病例，511例死亡。这突显了中国当前家禽贸易和活家禽市场体系所构成的持续威胁。到目前为止，中国已经出现了五次H7N9流感疫情；然而，从2016年10月开始的第五波中观察到的感染H7N9病毒的人的数量急剧增加，传播到西部省份，以及高致病性（HP）H7N9流感在鸡中暴发和在人中感染的出现，已经引起了国内外的关注。在这篇综述中，我们总结和比较了H7N9在流行病学、发病机制、进化和特征方面的不同波动，并推测了最近人类病例数量增加和鸡突发疫情背后的因素。病毒的不断演变对公共卫生和家禽业构成长期威胁，因此必须加强预防和控制战略。

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来源
《Trends in Microbiology》 |2017年第9期|共16页
作者
Su Shuo; Gu Min; Liu Di; Cui Jie; Gao George F.; Zhou Jiyong; Liu Xiufan;
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作者单位

Nanjing Agr Univ Jiangsu Engn Lab Anim Immunol Inst Immunol Nanjing 210095 Jiangsu Peoples R China;

Yangzhou Univ Anim Infect Dis Lab Coll Vet Med Yangzhou 225009 Jiangsu Peoples R China;

Chinese Acad Sci CAS Key Lab Pathogen Microbiol &

Immunol Inst Microbiol Beijing Peoples R China;

Chinese Acad Sci Wuhan Inst Virol Ctr Emerging Infect Dis CAS Key Lab Special Pathogens &

Biosafety Wuhan 430071 Hubei Peoples R China;

Chinese Acad Sci CAS Key Lab Pathogen Microbiol &

Immunol Inst Microbiol Beijing Peoples R China;

Nanjing Agr Univ Jiangsu Engn Lab Anim Immunol Inst Immunol Nanjing 210095 Jiangsu Peoples R China;

Yangzhou Univ Anim Infect Dis Lab Coll Vet Med Yangzhou 225009 Jiangsu Peoples R China;

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正文语种 eng
中图分类微生物学;
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机译：自2013年以来五次流行波H7N9流感病毒的流行病学，演化和发病机制
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机译：自2013年以来五次流行波H7N9流感病毒的流行病学，演化和发病机制
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Epidemiology, Evolution, and Pathogenesis of H7N9 Influenza Viruses in Five Epidemic Waves since 2013 in China

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