The Food and Drug Administration (FDA) announced Friday it has approved the first flu vaccine that can be self-administered, with this version being a nasal spray as opposed to an injection. The vaccine FluMist, manufactured by MedImmune, which was acquired by AstraZeneca in 2007, was first approved by the FDA in 2003 for individuals between five and 49 years of age. Its approval has since been expanded to include children as young as two years old. With the FDA’s announcement Friday, FluMist is officially the first flu vaccine that can be administered without a healthcare provider’s involvement. The spray contains...