Routine annual influenza vaccination is recommended for all
persons aged 6 months and older who do not have contraindications.
Vaccination to prevent flu is particularly important for people who are at higher risk of developing serious flu complications.
Flu vaccination prevents millions of illnesses and flu-related doctor’s visits each year. For example, during 2019-2020 flu vaccination prevented an estimated 7.5 million influenza illnesses, 3.7 million influenza-associated medical visits, 105,000 influenza-associated hospitalizations, and 6,300 influenza-associated deaths.
