FDA approves first quadrivalent vaccine to prevent seasonal influenza

On Feb. 29, the U.S. Food and Drug Administration (FDA) announced the approval of FluMist Quadrivalent, the first influenza vaccine to contain four strains of the influenza virus, two influenza A strains and two influenza B strains. FluMist Quadrivalent is deigned to prevent seasonal influenza in people ages 2 years through 49 years. Read more.


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