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Volume 20, Number 12—December 2014
Research

Circulation of Reassortant Influenza A(H7N9) Viruses in Poultry and Humans, Guangdong Province, China, 2013

Changwen Ke, Jing Lu, Jie Wu, Dawei Guan, Lirong Zou, Tie Song, Lina Yi, Xianqiao Zeng, Lijun Liang, Hanzhong Ni, Min Kang, Xin Zhang, Haojie Zhong, Jianfeng He, Jinyan Lin, Derek Smith, David Burke, Ron A.M. Fouchier, Marion Koopmans, and Yonghui ZhangComments to Author 
Author affiliations: Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China (C. Ke, J. Lu, J. Wu, D. Guan, L. Zou, T. Song, L. Yi, X. Zeng, L. Liang, H. Ni, M. Kang, X. Zhang, H. Zhong, J. He, J. Lin, Y. Zhang); University of Cambridge, Cambridge, UK (D. Smith, D. Burke); Erasmus MC, Rotterdam, the Netherlands (R.A.M. Fouchier, M. Koopmans); National Institute of Public Health and the Environment, Bilthoven, the Netherlands (M. Koopmans)

Main Article

Table 2

Genomes of influenza A(H7N9) viruses detected in 16 patients and from environmental samples in Guangdong Province, China*

Sample identification PB2 variant PB1 variant PA variant NP variant M variant NS variant
Patient samples
HZ-Y/01/2013 1 1 0 1 0 1
FS-Y/019/2014 1 1 0 1 0 1
FS2-Y/033/2014 1 1 0 1 0 1
FS2-T/034/2014 1 1 0 1 0 1
SZ-T/035/2014 1 1 0 1 0 1
SZ-Y/036/2014 1 1 0 1 0 1
A/Hong Kong/734/2014 1 1 0 1 0 1
DG-Y/02/2013 1 1 1 1 0 1
DG-T/03/2013 1 1 1 1 0 1
YJ-T/04/2013 1 1 1 1 0 1
YJ-T/05/2013 1 1 1 1 0 1
YJ2-T/012/2014 1 1 1 1 0 1
YJ2-Y/013/2014 1 1 1 1 0 1
FS-Y/029/2014 1 1 1 1 0 1
Hong Kong 2212982 1 1 1 1 0 1
GZ-T/010/2014 1 1 2 1 0 1
FS-Y/031/2014 1 1 2 1 0 1
SZ-T/026/2014
1
1
0
2
0
1
Environmental samples
Guangdong/02620/2014 1 1 0 1 0 1
Guangdong/24997/2014 1 1 0 1 0 1
Guangdong/0092/2014 1 1 1 1 0 1
Guangdong/02124/2014 1 1 1 1 0 1
Guangdong/25003/2014 1 1 1 1 x 1
Guangdong/02125/2014 1 1 2 1 0 1
Variant origin SC SC PA-1: SC NP-1: SC SC
PA-2: EC NP-2:EC

*Lineages shown correlated with those shown Figure 2. Shading indicates grouping of 4 reassortant types. Variant origin (bottom rows) was derived from phylogenetic trees and indicated as SC (southern China) and EC (eastern China). Three of the 4 reassortant genomes were also detected through environmental surveillance. M, matrix; NP, nucleoprotein; NS, nonstructural; PA, polymerase acidic; PB, polymerase basic.

Main Article

Page created: November 18, 2014
Page updated: November 18, 2014
Page reviewed: November 18, 2014
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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