Recommendations for Influenza Vaccine Composition

Northern hemisphere: 2008-2009

It is recommended that vaccines for use in the 2008-2009 influenza season (northern hemisphere winter) contain the following:

— an A/Brisbane/59/2007 (H1N1)-like virus;
— an A/Brisbane/10/2007 (H3N2)-like virus*;
— a B/Florida/4/2006-like virus#.

* A/Brisbane/10/2007 is a current southern hemisphere vaccine virus.
# B/Florida/4/2006 and B/Brisbane/3/2007 (a B/Florida/4/2006-like virus) are current southern hemisphere vaccine viruses.