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Influenza Vaccine Composition

The recommended influenza vaccine composition for New Zealand in 2012 is:

• A(H1N1): an A/California/7/2009 (H1N1)-like strain, 15 μg HA per dose
• A(H3N2): an A/Perth/16/2009 (H3N2)-like strain, 15 μg HA per dose
• B: a B/Brisbane/60/2008-like strain, 15 μg HA per dose

Vaccine strains recommended as suitable are those listed on the World Health Organisation (WHO) Influenza vaccine viruses and reagents web pages (see http://www.who.int/influenza/vaccines/virus/en/) for H1N1, H3N2 and B-Victoria lineage viruses.

This recommendation is based on the outcome of:

• The meeting of the Australian Influenza Vaccine Committee, with a New Zealand representative, to consult on the influenza vaccine composition for 2012 (held on 5 October 2011),
• Information on international surveillance by the WHO Global Influenza Surveillance Network,
• Analysis of recent data on epidemiology and strain characterisation, and
• The recommendations of the WHO annual consultation on the composition of 2012 influenza vaccine for the Southern Hemisphere.