Adolescent Vaccination Recommendation: One dose annually.
Influenza, also called the flu, is a contagious viral infection of the nose, throat, and lungs, that can cause severe illness. Influenza and its complications are responsible for 3,000-49,000 US deaths each year, depending on the severity of the circulating viruses. The highest rate of influenza infection in the US is in school-aged children.
Influenza is spread easily from person to person. When someone who has the flu sneezes, coughs, or even talks, the virus passes into the air and may be breathed in by anyone close by. Influenza can cause serious complications in healthy people of all ages and particularly among people with pre-existing conditions. Influenza vaccine is needed every year for the best protection.
UPDATE: On June 22, 2016, the CDC Advisory Committee on Immunization Practices (ACIP) recommended a change to US influenza vaccination policy for 2016-2017. ACIP voted that live attenuated influenza vaccine (LAIV), also known as the “nasal spray” flu vaccine, should not be used during the 2016-2017 flu season. ACIP continues to recommend annual flu vaccination, with either the inactivated influenza vaccine (IIV) or recombinant influenza vaccine (RIV), for all individuals age 6 months and older.