News March 1, 2012 MedImmune Announces FDA Approval of First Four-strain Flu Vaccine, FluMist® Quadrivalent (Influenza Vaccine Live, Intranasal) – PR Newswire – The Sacramento Bee MedImmune today announced that the U.S. Food and Drug Administration (FDA) has approved FluMist® Quadrivalent… Super User 0 Love0
