Table 1.
Influenza B component of the bi-annual trivalent influenza vaccine (TIV) from 2004-2013
| Year | Hemisphere | Strain | Lineage | Abbreviation |
|---|---|---|---|---|
| 2012-2013 | Northern | B/Wisconsin/1/2010 | Yamagata | Vacc1213N B Wisconsin 01 2010 |
| 2012 | Southern | B/Brisbane/60/2008 | Victoria | Vacc0912NS B Brisbane 60 2008 |
| 2011-2012 | Northern | B/Brisbane/60/2008 | Victoria | |
| 2011 | Southern | B/Brisbane/60/2008 | Victoria | |
| 2010-2011 | Northern | B/Brisbane/60/2008 | Victoria | |
| 2010 | Southern | B/Brisbane/60/2008 | Victoria | |
| 2009-2010 | Northern | B/Brisbane/60/2008 | Victoria | |
| 2009 | Southern | B/Florida/4/2006 | Yamagata | Vacc0809NS B Florida 4 2006 |
| 2008-2009 | Northern | B/Florida/4/2006 | Yamagata | |
| 2008 | Southern | B/Florida/4/2006 | Yamagata | |
| 2007-2008 | Northern | B/Malaysia/2506/2004 | Victoria | Vacc0608NS B Malaysia 2506 2004 |
| 2007 | Southern | B/Malaysia/2506/2004 | Victoria | |
| 2006-2007 | Northern | B/Malaysia/2506/2004 | Victoria | |
| 2006 | Southern | B/Malaysia/2506/2004 | Victoria | |
| 2005-2006 | Northern | B/Jiangsu/10/2003 | Yamagata | Vacc0506N B Jiangsu 10 2003 |
| 2005 | Southern | B/Shanghai/361/2002 | Yamagata | Vacc0504N 05S B Shanghai 361 2002 |
| 2004-2005 | Northern | B/Shanghai/361/2002 | Yamagata | |
| 2004 | Southern | B/Hong Kong/330/2001 | Victoria | Vacc04S B Hong Kong 330 2001 |
The composition of the TIV is recommended bi-annually by the WHO. The influenza B component is often decided by HI inhibition assay of the prevalent influenza B virus currently circulating. The last column of this table lists the abbreviation used for each vaccine strain throughout this report.