The flu vaccine is effective in preventing the serious complications of influenza and in helping to stop it spread. This could be the difference between life and death. The vaccine cannot give you flu, although it can make your arm feel a bit sore and sometimes cause a slight temperature. Other reactions are very rare.
The antibodies that protect you from flu decline over time, and flu strains also change from year to year, so you need an updated vaccination against the virus every year.
The flu vaccine programme for the 2020/21 flu season has been extended, with more groups eligible to receive flu vaccine than ever before. For full details see the RCN advice sheet
and the country specific detail for the annual flu programme; England
, Northern Ireland