|
1
|
Zhang Z, Li S, Zhu X, Hou J, Zhang H, Zhao B, Tian Z. Increased genetic variation of A(H3N2) virus from influenza surveillance at the end of the 2016/2017 season for Shanghai port, China. Sci Rep 2022; 12:17089. [PMID: 36224196 PMCID: PMC9556717 DOI: 10.1038/s41598-022-19228-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 08/25/2022] [Indexed: 01/04/2023] Open
Abstract
Influenza A(H3N2) virus exhibited complex seasonal patterns to evade pre-existing antibodies, resulting in changes in the antigenicity of the viron surface protein hemagglutinin (HA). To monitor the currently imported influenza viruses as well as to assess the capacity of health emergencies at the Shanghai port, we collected respiratory specimens of passengers from different countries and regions including some of Europe with influenza-like illness at the Shanghai port during 2016/2017, examined amino acid substitutions, and calculated the perfect-match vaccine efficacy using the p epitope model. Phylogenetic analysis of the HA genes revealed that influenza A(H3N2) viruses belonging to eight subclades were detected, and three amino acid substitutions in the subclade 3C.2a.4 were also added. Besides, two epidemic influenza virus strains were found in the 2016/2017 winter and 2016 summer. The results of lower predicted vaccine effectiveness in summer suggest that the imported A(H3N2) strains were not a good match for the A/Hong Kong/4801/2014 vaccine strain since the summer of 2017. Therefore, the Shanghai Port might stop the risk of the international spread of influenza for the first time, and curb the entry of A(H3N2) from overseas at the earliest stage of a probable influenza pandemic.
Collapse
Affiliation(s)
- Zilong Zhang
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Shenwei Li
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Xiaolin Zhu
- Shanghai BioGerm Medical Biotechnology Co., Ltd, Shanghai, 201401 China
| | - Jian Hou
- Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Hong Zhang
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Baihui Zhao
- grid.16821.3c0000 0004 0368 8293Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai, 200030 China ,Shanghai BioGerm Medical Biotechnology Co., Ltd, Shanghai, 201401 China
| | - Zhengan Tian
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| |
Collapse
|
|
2
|
Li X, Chen J, Hu J, Jin X, Xie S, Li Z, Wang X, Dai Y, Liao M, Jia W. Rapid evolution and gene communication of H3N2 and H1N1 influenza a viruses. J Infect 2019; 78:491-503. [PMID: 30910534 DOI: 10.1016/j.jinf.2019.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/17/2019] [Accepted: 03/19/2019] [Indexed: 11/15/2022]
Affiliation(s)
- Xiao Li
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Jianglin Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Jingkai Hu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Xuanjiang Jin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Shumin Xie
- Experimental Animal Center, South China Agricultural University, Guangzhou, China
| | - Zhixian Li
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Xiao Wang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Yixue Dai
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China; Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou, China.
| | - Weixin Jia
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, College of Veterinary Medicine, South China Agricultural University, China; Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA.
| |
Collapse
|