Table 1.
Antigenic characteristics of influenza viruses and vaccine strains from the 2004/2005 to 2008/2009 seasons
| Season and type or subtype | Vaccine component | Circulating strains |
|---|---|---|
| 2004/2005 | ||
| H1N1 | A/New Caledonia/20/99-like | - |
| H3N2 | A/Fujian/411/2002-like | A/California/7/2004(H3N2)-like |
| B | B/Shanghai/361/2002-like | B/Malaysia/2506/2004-like* B/Shanghai/361/2002-like* |
| 2005/2006 | ||
| H1N1 | A/New Caledonia/20/99-like | A/New Caledonia/20/99* |
| H3N2 | A/California/7/2004-like | A/Wisconsin/67/2005-like |
| B | B/Shanghai/361/2002-like | - |
| 2006/2007 | ||
| H1N1 | A/New Caledonia/20/99 | - |
| H3N2 | A/Wisconsin/67/2005 or A/Hiroshima/52/2005 | A/Wisconsin/67/2005-like |
| B | B/Malaysia/2506/2004 | B/Malaysia/2506/2004-like* |
| 2007/2008 | ||
| H1N1 | A/Solomon Islands/3/2006 | A/Brisbane/59/2007-like* |
| H3N2 | A/Wisconsin/67/2005 or A/Hiroshima/52/2005 | A/Brisbane/10/2007-like |
| B | B/Malaysia/2506/2004 | B/Florida/4/2006-like |
| 2008/2009 | ||
| H1N1 | A/Brisbane/59/2007 | A/Brisbane/59/2007-like* |
| H3N2 | A/Brisbane/10/2007 | A/Brisbane/10/2007-like |
| B | B/Florida/4/2006-like | B/Florida/4/2006-like |
*
Dominant types/subtypes during the given season.