A pertussis (whooping cough) epidemic has been declared New Zealand.

Health New Zealand says there have been 263 cases of pertussis in the past four weeks - the highest number over a four-week period to date for all of 2024, triggering a national epidemic response by public health services.

Cases have spread across the motu, affecting various age groups and ethnicities, with some babies and older people hospitalised.

The numbers of pertussis are among the highest recorded in New Zealand since early 2019.

Healthcare professionals are being asked to remain vigilant for people presenting with symptoms and to continue to promote vaccinations to protect vulnerable groups.

Vaccination in pregnancy remains a priority. Health professionals should advise pregnant people of the increase in pertussis cases and recommend free Boostrix vaccination from 16 weeks in every pregnancy as it is the best way to protect their newborn until they are old enough to be vaccinated themselves.

Health New Zealand also advises:

• Pertussis vaccination should be encouraged for the extended whānau of pregnant people, new babies and infants, although depending on their age they may not be eligible for a funded vaccine.

• Continue to prioritise on time immunisation for all babies at 6 weeks, 3 months and 5 months and pertussis boosters at 4 years and 11 years for children.

• Encourage all healthcare staff, including reception and administrative staff, to be protected from pertussis as well as influenza and measles. Booster vaccinations are recommended 5-10 yearly depending on employer requirements for all lead maternity carers and healthcare workers who are in direct contact with infants.

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IMAC has created a factsheet for health professionals with quick access to all information about pertussis, the Boostrix vaccine and other relevant resources.

Click here for the factsheet.

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