TABLE 1.
H5N1 avian influenza viruses used in this study
| Virus strain | Abbreviation | Virus clade | IVPIa |
|---|---|---|---|
| A/Anhui/1/2005 | AH05 | 2.3.4 | 3.0 |
| A/tree sparrow/Jiangsu/1/2008 | JS08 | 2.3.4 | 3.0 |
| A/chicken/Jilin/Q023/2009 | JL09 | 2.3.4 | 2.92 |
| A/duck/Liaoning/Q1/2009 | LN09 | 2.3.4 | 3.0 |
| A/chicken/Huabei/0513/2007 | HB07 | 2.3.2 | 2.85 |
| A/chicken/Tianjin/QA22/2009 | TJ09 | 2.3.2 | 2.88 |
| A/chicken/Guangdong/QR11/2009 | GD09 | 2.3.2 | 2.90 |
| A/chicken/Sheny/0606/2008 | SY08 | 7 | 2.80 |
| A/chicken/Shanxi/QX2/2009 | SX09 | 7 | 2.85 |
| A/chicken/Ningxia/QH14/2009 | NX09 | 7 | 2.90 |
a
IVPI, intravenous pathogenicity index.