You are here Home Recommendations Recommendations Adults aged ≥65 years are recommended to receive a booster dose of dTpa if their last dose was more than 10 years ago Listen Print Share Twitter Facebook Email Adults aged ≥65 years are recommended to have a booster dose of dTpa if their last dose was more than 10 years ago. This is to protect against pertussis (see Pertussis). Related diseases Diphtheria Page history Last updated 4 June 2018 Last reviewed 4 June 2018 Is there anything wrong with this page? Help us improve the Australian Immunisation Handbook What you were doing? (required) What went wrong? (required) Leave this field blank