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The US Food and Drug Administration recommended A/California/07/2009 (H1N1)pdm09 virus for use as a vaccine during the 2009-2010 influenza season.

The US Food and Drug Administration recommended A/California/07/2009 (H1N1)pdm09-like viruses for use as vaccines during the 2010-2011 influenza season.

The World Health Organization recommended influenza A/California/07/2009 (H1N1)pdm09-like viruses for use as vaccines during the 2010 Southern Hemisphere and the 2010-2011 Northern Hemisphere influenza seasons.

Temperature: 35°C

Recommendations for Infection: Inoculate SPF chicken embryonated eggs (intra-allantoic) at 9-11 days old. Dilute virus in D-PBS prior to inoculation.

Incubation: 2 days at 35°C in a humidified, non-CO₂ atmosphere.

Influenza Research Database – Details for A/California/7/2009(H1N1)

National Center for Immunization and Respiratory Diseases, CDC. Use of influenza A (H1N1) 2009 monovalent vaccine: recommendations of the Advisory Committee on Immunization Practices (ACIP), 2009. MMWR Recomm Rep 58(RR-10): 1-8, 2009. PubMed: 19713882

Fiore AE, et al. Prevention and control of influenza with vaccines: recommendations of the Advisory Committee on Immunization Practices (ACIP), 2010. MMWR Recomm Rep 59(RR-8): 1-62, 2010. PubMed: 20689501

WHO recommendations on the composition of influenza virus vaccines