Influenza virus | Number of passages in embryonated eggs |
---|---|
Swine influenza viruses: | Â |
   Sw/Belgium/1/98 (H1N1) | 3 |
   Sw/Flanders/1/98(H3N2) | 3 |
   Sw/Gent/7625/99 (H1N2) | 3 |
Human influenza viruses: | Â |
   A/New Caledonia/20/99 (H1N1) * | 4 |
   A/Panama/2007/99 (H3N2) * | 7 |
Low pathogenic AIVs: | Â |
   Duck/Italy/1447/05 (H1N1)§ | 4 |
   Mallard/Alberta/279/98 (H3N8)†| 3 |
   Duck/Belgium/06936/05 (H4N6) ‡ | 3 |
   Chicken/Belgium/150/99 (H5N2)‡ | 3 |
   Chicken/Italy/1067/V99 (H7N1) § | 4 |
   Mallard/Italy/3401/2005 (H5N1) § | 3 |