典型文献
Continued antigenic variation of highly pathogenic avian influenza A(H7N9)virus in laying hens in China,2020-2021
文献摘要：
Dear Editor,
Since it first appeared in humans in China in 2013,a novel H7N9 influenza virus has caused 1,568 cases of infection,with a mortality rate of 39.2％(Yin et al.,2021).The early H7N9 virus strains had low path-ogenicity and did not cause avian disease(Zhang et al.,2013).However,they caused concern about poultry consumption and caused huge eco-nomic losses to the poultry industry.Since mid-2016,some H7N9 viruses mutated,with an insertion of four basic amino acids in their cleavage sites of hemagglutinin(HA)and thereby became highly pathogenic to chickens,causing multiple outbreaks in poultry in China(Wang et al.,2017;Hou et al.,2019).
文献关键词：
中图分类号：
作者姓名：
Wenming Jiang;Xin Yin;Shuo Liu;Shaobo Liang;Cheng Peng;Guangyu Hou;Jinping Li;Xiaohui Yu;Yang Li;Jingjing Wang;Hualei Liu
作者机构：
China Animal Health and Epidemiology Center,Qingdao,266032,China
文献出处：
引用格式：
[1]Wenming Jiang;Xin Yin;Shuo Liu;Shaobo Liang;Cheng Peng;Guangyu Hou;Jinping Li;Xiaohui Yu;Yang Li;Jingjing Wang;Hualei Liu-.Continued antigenic variation of highly pathogenic avian influenza A(H7N9)virus in laying hens in China,2020-2021)[J].中国病毒学,2022(04):631-633
A类：
ogenicity
B类：
Continued,antigenic,variation,highly,pathogenic,avian,influenza,H7N9,laying,hens,China,Dear,Editor,
Since,first,appeared,humans,novel,has,caused,cases,infection,mortality,rate,Yin,et,early,strains,had,low,did,not,disease,Zhang,However,they,concern,about,poultry,consumption,huge,eco,nomic,losses,industry,mid,some,viruses,mutated,insertion,four,basic,amino,acids,their,cleavage,sites,hemagglutinin,HA,thereby,became,chickens,causing,multiple,outbreaks,Wang,Hou
AB值：
0.651489
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
