Influenza

Recommended composition of influenza virus vaccines for use in the 2012-2013 northern hemisphere influenza season

23 February 2012

It is recommended that vaccines for use in the 2012-2013 influenza season (northern hemisphere winter) contain the following:

  • an A/California/7/2009 (H1N1)pdm09-like virus;
  • an A/Victoria/361/2011 (H3N2)-like virus;
  • a B/Wisconsin/1/2010-like virus.

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