Influenza vaccine (flu shot)
It takes 2 weeks to develop full immunity to the flu and protection lasts up to one year. You cannot get the flu from the vaccine, it does not contain live virus.
Stop the spread
The flu is spread from person to person by coughing, sneezing or other contact with fluids coming from the nose or mouth. It can also be spread by contact with contaminated surfaces. If you are ill and think you may have influenza learn more about how to stop the spread.
Learn more about influenza, the common cold, and gastrointestinal infections (which is often mistakenly called the flu).