- 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 it 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.