The Td/IPV vaccine, also known as the "teenage booster" or the "3 in 1", is given to boost protection against 3 separate diseases:
Rhoddir y Td/IPV, a elwir hefyd yn "pigiad atgyfnerthu i bobl yn eu harddegau" neu "3 mewn 1", i hybu amddiffyniad rhag 3 chlefyd ar wahân: