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Volume 30, Number 6—June 2024
Dispatch

Evolution and Antigenic Differentiation of Avian Influenza A(H7N9) Virus, China

Yang Liu1, Yuhua Chen1, Zhiyi Yang, Yaozhong Lin, Siyuan Fu, Junhong Chen, Lingyu Xu, Tengfei Liu, Beibei Niu, Qiuhong Huang, Haixia Liu, Chaofeng Zheng, Ming LiaoComments to Author , and Weixin JiaComments to Author 
Author affiliations: South China Agricultural University, Guangzhou, China (Y. Liu, Z. Yang, Y. Lin, S. Fu, J. Chen, L. Xu, T. Liu, B. Niu, Q. Huang, M. Liao, W. Jia); Guangzhou Animal Health Inspection Institute, Guangzhou (Y. Chen); Guangdong Aib Polytechnic College, Guangzhou (H. Liu); Animal Husbandry and Veterinary Station, Urumqi, China (C. Zheng)

Main Article

Table

Hemagglutination inhibition titers of 23 H7N9 epidemic viruses and vaccine viruses in a study of evolution and antigenic differentiation of avian influenza A(H7N9) virus, China*

Group Antigen Antiserum, log2
H7N9-Re4 rHN7901 229–2 257–3 320–1 363–4
Referent H7N9-Re4 10 10 5 5 10 10
Referent rHN7901 9 10 3 2 9 10
y.2.3 A/Chicken/HeB/229–2/2022 5 5 10 10 9 8
y.2.3 A/Chicken/HeB/257–3/2022 5 3 10 10 9 8
y.2.3 A/Quail/HeN/782–2/2022 4 4 10 9 8 6
y.2.3 A/Chicken/LN/976–3/2022 5 4 10 9 8 6
y.2.3 A/Duck/HeB/976–2/2022 5 4 10 9 7 5
y.2.3 A/Chicken/HeB/199–1/2022 7 5 10 10 9 8
y.2.3 A/Chicken/GX/J17/2022 7 7 10 10 8 9
y.2.3 A/Chicken/HeB/526/2022 6 5 8 8 7 7
y.2.3 A/Chicken/HeB/229–4/2022 6 6 10 10 9 8
y.2.3 A/Chicken/SX/B1323–1/2022 7 7 9 10 9 6
y.2.3 A/Chicken/SX/B22–2/2023 7 8 9 10 9 7
y.2.4 A/Chicken/HeB/363–4/2022 5 5 6 5 9 10
y.2.4 A/Chicken/HeB/320–1/2022 8 9 6 2 10 7
y.2.4 A/Quail/HeN/621/2022 5 3 3 4 6 6
y.2.4 A/Chicken/BJ/732–1/2022 5 5 5 3 6 9
y.2.4 A/Chicken/HuB/J15/2022 9 8 7 6 7 10
y.2.4 A/Chicken/BJ/470–6/2022 8 9 4 3 7 9
y.2.4 A/Chicken/SC/468–2/2022 8 8 6 5 8 10
y.2.4 A/Chicken/HeB/J94/2022 8 8 6 5 8 10
y.2.4 A/Chicken/YN/415–2/2022 9 9 8 6 8 9
y.2.4 A/Chicken/SD/1401–2/2021 7 7 6 4 8 9
y.2.4 A/Chicken/JSu/B14–3/2023 9 9 6 6 9 10
y.2.4 A/Chicken/HeB/B14–1/2023 10 10 6 6 9 9

*Bold text indicates the cross titers of sera with corresponding antigens. BJ, Beijing; GX, Guangxi; HeB, Hebei; HeN, Henan; HuB, Hubei; JS, Jiangsu; LN, Liaoning; SC, Sichuan; SD, Shandong; SX, Shanxi; YN, Yunnan.

Main Article

1These first authors contributed equally to this article.

Page created: April 03, 2024
Page updated: May 22, 2024
Page reviewed: May 22, 2024
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