live attenuated influenza vaccine
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.
Related to live attenuated influenza vaccine: FluMist
live attenuated influenza vaccineAbbreviation: LAIV
A live virus vaccine made with influenza viruses adapted to replicate in the nose, sinuses, and pharynx but not in the lower respiratory tract. LAIV is typically administered by nasal inhalation rather than by intramuscular injection.
See also: vaccine