Vaccines, Blood & Biologics
Influenza Virus Vaccine Composition and Lot Release
Each year, experts from the FDA, WHO, U.S. Centers for Disease Control and Prevention (CDC), and other institutions study virus samples and patterns collected from around the world in an effort to identify strains that may cause the most illness in the upcoming season. Based on those forecasts and on the recommendations of the FDA’s Vaccine and Related Products Advisory Committee, the FDA determines the three strains that manufacturers should include in their vaccines for the U.S. population. The closer the match between the circulating strains and the strains in the vaccine, the better the protection against the disease.
Composition, Lot Release and Other Seasonal Information
Influenza Virus Vaccine for the 2012-2013 Season - Influenza Virus Vaccine for the 2011-2012 Season
Influenza Virus Vaccine for the 2010-2011 Season Influenza Virus Vaccine for the 2009-2010 Season Influenza Virus Vaccine for the 2008-2009 Season Influenza Virus Vaccine for the 2007-2008 Season Influenza Virus Vaccine for the 2006-2007 Season Influenza Virus Vaccine for the 2005-2006 Season Influenza Virus Vaccine for the 2004-2005 Season Influenza Virus Vaccine for the 2003-2004 Season Influenza Virus Vaccine for the 2002-2003 Season Influenza Virus Vaccine for the 2001-2002 Season Influenza Virus Vaccine for the 2000-2001 Season Influenza Virus Vaccine for the 1999-2000 Season
Contact FDA
Division of Communication and Consumer Affairs
Office of Communication, Outreach and Development
Food and Drug Administration
1401 Rockville Pike
Suite 200N/HFM-47
Rockville, MD 20852-1448
