A flu shot prepares your immune system for the upcoming flu season using dead flu viruses. The vaccine contains the virus strains currently in circulation. If your immune system is armed against these, your chances of getting through the winter without illness increase. The doctor giving the injection can also advise you on the risks of the vaccination.
When to get a flu shot
You can prevent or relieve influenza if you get vaccinated at the right time. It takes your body 14 days after the injection to mobilize its immune system against the flu. Accordingly, the best time to vaccinate is just before the flu season in October or November.
In which cases you shouldn’t get vaccinated
Chicken protein is used in the manufacture of the vaccine. It used to cause problems in people who are allergic to protein. If you yourself suffer from allergies, since 2007/2008 you can have an alternative vaccination, which is produced on cell cultures. However, every vaccination uses the immune system. You should tell your doctor if you already have another acute infection because the flu shot could make it worse. Chronically ill people who want to prevent influenza should also rely on the advice of their doctor. This weighs up whether the risks of the vaccination are too great or whether the benefits outweigh them.