WILMINGTON, Del.–(BUSINESS WIRE)–FLUMIST® has been approved in the US as the only self-administered influenza vaccine. FLUMIST, a needle-free nasal spray, was approved to be self-administered by adults up to 49 years of age or administered by a parent/caregiver to individuals 2-17 years of age.1 The approval by the US Food and Drug Administration (FDA) was based on a comprehensive submission, which included results from a usability study demonstrating that individuals over 18 years of age cou