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Flu Vaccine (cont.)

Viral Strains and Producers of the Seasonal Flu Vaccines for 2013-2014

For the 2013-2014 flu season, for the first time, the seasonal flu vaccine can be composed of four different flu antigens instead of the usual three. However, the trivalent vaccine is also still available. The CDC indicates the following: The 2013-2014 U.S. trivalent influenza vaccines will contain an A/California/7/2009 (H1N1)-like virus, an H3N2 virus antigenically like the cell-propagated prototype virus A/Victoria/361/2011, and a B/Massachusetts/2/2012-like virus. Quadrivalent (containing 4 viral types) vaccines will include an additional vaccine virus, a B/Brisbane/60/2008-like virus. The CDC speculated that the quadrivalent vaccine will replace the trivalent vaccine in the future. In addition, a quadrivalent nasal spray vaccine is now available and is expected to replace the current trivalent live attenuated vaccine.

The following is a list of the FDA-approved seasonal (2013-2014 flu season) vaccines and the companies that name and manufacture them as of August 2013:

  • Sanofi Pasteur
  • Novartis
  • MedImmune, LLC
  • ID Biomedical Corporation of Quebec
  • CSL Limited
  • GlaxoSmithKline
  • Protein Sciences

Caregivers are strongly advised to read the package inserts to check for indications and contraindications before administering any type of vaccine, especially new vaccines, as sometimes the indications for use and contraindications change. Readers are advised to view an extensive table ( that the CDC developed for each vaccine type and producer to describe the individual features of each vaccine. In addition, there are updates made occasionally about who should get what type of vaccine.

Medically Reviewed by a Doctor on 10/3/2013

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