Back in December 2012, we reported this:
December 18, 2012
The FDA has approved the first influenza vaccine intended to protect against four strains of the virus, drug maker GlaxoSmithKline announced in a press release.
Fluarix Quadrivalent is indicated for children aged 3 years and older and adults, and will be available in time for the 2013-2014 flu season. The new quadrivalent influenza vaccine will contain two influenza B strains instead of one, in addition to the two influenza A strains currently used in trivalent influenza vaccines.
A few days ago, we have this report:
June 10, 2013
Quadrivalent flu vaccine approved for kids younger than 2 years
The FDA has approved a quadrivalent influenza vaccine for use in adults and children aged 6 months and older during the 2013-2014 season.
Fluzone Quadrivalent (Sanofi Pasteur) will be the only influenza vaccine that protects children younger than 2 years against four strains of influenza, the manufacturer announced in a press release.
Previously, the FDA approved FluMist Quadrivalent (Medimmune) for children aged 2 years and older, and Fluarix Quadrivalent (GlaxoSmithKline) for those aged 3 years and older. All three quadrivalent vaccines will include two strains of the influenza A and two strains of the influenza B subtypes.
Fluzone Quadrivalent will be available as prefilled syringes and single-dose vials for intramuscular administration.