US FDA approves AstraZeneca's self-administered nasal spray flu vaccine

(Reuters) -The U.S. Food and Drug Administration said on Friday it has approved AstraZeneca's nasal spray flu vaccine for self-administration, making it the first of its kind. FluMist is the first vaccine to prevent influenza that does not need to be administered by a healthcare provider, the regulator said. The flu is a common and contagious respiratory disease caused by influenza viruses that