Adult household contacts and carers of infants aged <6 months are recommended to receive pertussis-containing vaccine at least 2 weeks before they have close contact with the infant
Adult household contacts and carers of infants <6 months of age are recommended to receive dTpa vaccine at least 2 weeks before they have close contact with the infant if their last dose was more than 10 years ago.17,18 This is due to waning of vaccine immunity during this time.17,18 Pertussis infection in infants <6 months of age is associated with significant morbidity. The infection source in infants is often a household contact.24 See Vaccine Information - Pertussis vaccine for household contacts of infants.
