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WHO Influenza Centre

Annual and interim reports

The reports below are in PDF format.

February 2013 interim report (85 pages, 6.8Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between September 2012 and February 2013.
September 2012 interim report (84 pages, 7.9Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between February 2012 and September 2012.
February 2012 interim report (73 pages, 8.7Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between February 2011 and September 2011.
September 2011 interim report (77 pages, 11.4Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between February 2011 and September 2011.
February 2011 interim report (70 pages, 7Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between September 2010 and February 2011.
September 2010 interim report (60 pages, 4.8Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between February 2010 and August 2010.
February 2010 interim report (61 pages/2.6Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between September 2009 and February 2010.
September 2009 interim report (31 pages/6.3Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between February 2009 and August 2009.
February 2009 interim report (22 pages/4.2Mb): This describes the characteristics of human influenza AH1N1, AH3N2, and B viruses collected between October 2008 and February 2009.
September 2008 interim report (23 pages/4.3Mb): Describes the characteristics of human influenza AH1N1, AH3N2, AND B viruses isolated February 2008 to July 2008.
March 2008 interim report (39 pages/10.7Mb): Describes the characteristics of human influenza AH1N1, AH3N2, AND B viruses isolated September 2007 to February 2008.
September 2007 interim report (24 pages/11Mb): Describes the characteristics of human influenza AH1N1, AH3N2 AND B viruses isolated February to August 2007.
March 2007 interim report (20 pages/3.2Mb): Describes the characteristics of human influenza AH1N1, AH3N2 AND B viruses isolated September 2006 to February 2007.
September 2006 interim report (29 pages/1.6Mb): Describes the characteristics of human influenza AH1N1, AH3N2 AND B viruses isolated January to September 2006.
March 2006 interim report (19 pages/1.5Mb): Describes the characteristics of human influenza AH1N1, AH3N2 and B viruses isolated October 2005 to February 2006.
September 2005 interim report (21 pages/4.1Mb): Describes the characteristics of human influenza A H1N1, A H3N2 and B viruses isolated February to July 2005.
February 2005 interim report (25 pages/1.8Mb): Describes the characteristics of human influenza A H1N1, A H3N2 and B viruses isolated October 2004 to January 2005.
2004 Annual Report (41 pages/ 2Mb): This Annual Report from the WIC includes a summary of data obtained between August 2003 and July 2004.
2003 Annual Report (42 pages/348kb): This Annual Report from the WIC includes a summary of data obtained between August 2002 and July 2003.
2002 Annual Report (46 pages/3.9Mb): This Annual Report from the WIC includes a summary of data obtained between August 2001 and July 2002.