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 Zhang
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.
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