Natural Reassortment of Eurasian Avian-Like Swine H1N1 and Avian H9N2 Influenza Viruses in Pigs, China
Wanying Sun
1, Samuel S.M. Cheng
1, Kristy N.T. Lam, Tsz C. Kwan, Ricky W.K. Wong, Leo H.K. Lau, Gigi Y.Z. Liu, Leo L.H. Luk, John K.C. Li, Haogao Gu, Malik Peiris

, and Leo L.M. Poon
Author affiliations: School of Public Health, The University of Hong Kong, Hong Kong, China (W. Sun, S.S.M. Cheng, K.N.T. Lam, T.C. Kwan, R.W.K. Wong, L.H.K. Lau. G.Y.Z. Liu, L.L.H. Luk, J.K.C. Li, H. Gu, M. Peiris, L.L.M. Poon); Centre for Immunology and Infection, Hong Kong (M. Peiris, L.L.M. Poon); HKU-Pasteur Research Pole, The University of Hong Kong, Hong Kong (M. Peiris, L.L.M. Poon)
Main Article
Table
Swine influenza viruses detected in imported pigs, China, April 2021–February 2022
Year and month |
No. nasal swabs |
No. virus isolates |
Isolation rate, % |
2021 |
|
|
|
Apr |
60 |
0 |
0 |
May |
75 |
0 |
0 |
Jun |
75 |
0 |
0 |
Jul |
75 |
0 |
0 |
Aug |
75 |
7* |
9.3 |
Sep |
75 |
1† |
1.3 |
Oct |
79 |
0 |
0 |
Nov |
85 |
0 |
0 |
Dec
|
80
|
0
|
0
|
2022 |
|
|
|
Jan |
75 |
0 |
0 |
Feb
|
75
|
0
|
0
|
Total |
829 |
8 |
0.97 |
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Page created: June 10, 2022
Page updated: June 18, 2022
Page reviewed: June 18, 2022
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