FluMist, a needle-free nasal spray influenza vaccine, has been approved by the FDA for self-administration in the US, making it the first flu vac

In a first, the Food and Drug Administration on Friday approved AstraZeneca's FluMist, a nasal spray flu vaccine that anyone can self-administer.

The F.D.A. authorized AstraZeneca’s treatment to be given outside a health care setting, although it will still need a prescription.