New Zealand Institute
for Public Health and
Forensic Science
Monday 26 January 2026
By Email: [FYI request #33194 email]
Dear Erika,
Official information request for Measles and/or Pertussis Data
I refer to your official information request received by the New Zealand Institute for Public Health
and Forensic Science Limited (‘PHF Science’) dated Tuesday 9 December 2025 for the following
information:
“I note the monthly notifiable disease surveillance report used to have ethnicity and immunization
status. For example for measles:
https://web.archive.org/web/20130504115614/http://surv.esr.cri.nz/PDF_surveillance/MeaslesRp
t/2012/201212MeaslesRpt.pdf
And Whooping cough / pertussis
https://web.archive.org/web/20150124083805/https://surv.esr.cri.nz/PDF_surveillance/Pertussis
Rpt/2013/20131PertussisRpt.pdf
Would you kindly share the ethnicity and immunisation status information on the monthly
notifiable disease surveillance report?
If they are no longer published, would you please share the minutes, memos correspondence,
emails etc regarding the decision to remove this information.”
The OIA requires that we advise you of our decision on your request no later than 20 working days
after the day we received your request. Unfortunately, it will not be possible to meet that time limit
and we are therefore writing to notify you of an extension of the time to make our decision, to
Friday 6 February 2026.
This extension is necessary because consultations are necessary to make a decision on your
request are such that a proper response cannot reasonably be made within the original time limit.
You have the right to seek an investigation and review by the Ombudsman of this decision.
Information about how to make a complaint is available at
www.ombudsman.parliament.nz or
freephone 0800 802 602.
Yours sincerely,
Wendy Chung
PHF Science Legal Coordinator
New Zealand Institute for Public Health and Forensic Science Limited
Kenepuru Science Centre: 34 Kenepuru Drive, Kenepuru, Porirua 5022 | PO Box 50348, Porirua 5240, New Zealand
www.phfscience.nz T: +64 4 914 0700