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Adult pertussis vaccination is increasingly recommended to control pertussis in the community. However, there is little data on the duration and kinetics of immunity to pertussis boosters in adults. We compared IgG responses to vaccination with a tetanus, low-dose diphtheria, low-dose acellular pertussis (Tdap) booster at 1 week, 1 month and 1 year post-vaccination in whole-cell (wP)-primed Australian paediatric healthcare workers who had received an adult Tdap booster 5-12 years previously, to those who received their first Tdap booster.

Immunisation is the most effective way of protecting your child against a range of serious illnesses, including measles, hepatitis B and whooping cough. All vaccines used in Australia undergo stringent testing and ongoing monitoring.

Ruth Peter Thornton Richmond PhD MBBS MRCP(UK) FRACP Co-head, Bacterial Respiratory Infectious Disease Group (BRIDG) Head, Vaccine Trials Group