Table 2. Vaccine strains for immunization of chickens against H5N1 HPAIVs.
| Candidate vaccine virus | Subtype | Clade | Seed name |
|---|---|---|---|
| A/turky/England/N-28/73 | H5N2 | Classical | - |
| A/chicken/Legok(Indonesia)/2003 | H5N1 | Clade 2.1.1 | - |
| A/duck/Novosibirsk/02/2005 | H5N1 | Clade 2.2 | - |
| A/goose/Guandong/1996 | H5N1 | Clade 0 | Re-1 |
| A/chicken/Shanxi/2/2006 | H5N1 | Clade 7 | Re-4 |
| A/duck/Anhui/1/2006 | H5N1 | Clade 2.3.4 | Re-5 |
| A/duck/Guangdong/S1322/2010 | H5N1 | Clade 2.3.2 | Re-6 |
| A/chicken/Egypt/18-H/2008 | H5N1 | Clade 2.2.1 | - |
| A/chicken/Liaoning/S4092/2011 | H5N1 | Clade 7.2 | Re-7 |
| A/pollo/Guizhou/4/13 | H5N1 | Clade 2.3.4.4 | Re-8 |