3-in-1 teenage booster (tetanus, diptheria and polio)
The teenage booster, also known as the 3-in-1 or the Td/IPV vaccine, is given to boost protection against 3 diseases: Tetanus, Diphtheria and Polio.
The 3-in-1 booster is offered at school in year 9 and given as a single injection into the arm.
Article provided by NHS
See original information on the NHS website.