The Department of Conservation has begun vaccinating some of New Zealand’s rarest birds against the deadly H5N1 strain of avian influenza, a world-first campaign that aims to give the country’s most vulnerable native species a fighting chance before the virus reaches these shores.
Around 300 core breeding birds from five threatened species are being vaccinated this month, ahead of the spring breeding season so the birds have time to build full immunity. The species chosen are the kākāpō, the takahē, the shore plover, the black stilt and the orange-fronted parakeet. Each has a tiny population that depends on intensive human care to survive, which means the loss of even a handful of breeding adults to disease could be catastrophic.
“We’re in a unique position to be able to vaccinate some of our most vulnerable birds as a precaution before H5N1 bird flu potentially arrives here,” said Dr Kate McInnes, a DOC senior science advisor and wildlife vet, in a statement announcing the programme.
DOC vets and specially trained staff are giving the injections, supported by species rangers and facilities teams. The vaccine contains only dead virus, so it cannot infect a bird or cause the disease it protects against. The decision to go ahead rests on four years of research and planning, including a world-first trial completed last year that tested the vaccine on five native species and found it both safe and effective. The Ministry for Primary Industries then approved the vaccination plan and the release of the vaccine for use.
The urgency has grown sharply in recent weeks. The H5N1 2.3.4.4b strain, which has killed millions of wild and farmed birds around the world since late 2021, was confirmed in Australia for the first time in June. Testing detected the virus in a brown skua, a migratory seabird found on a remote beach around 700 kilometres south-east of Perth, and a giant petrel found in the same area returned a suspected positive result. Australian authorities have reported no mass die-offs and no infected poultry so far.
New Zealand’s distance from the rest of the world has so far kept the virus out and bought precious time to prepare. Officials are candid that the geography will not hold forever, because the virus travels in wild birds that people cannot stop from flying here. “Since the H5N1 strain of bird flu started spreading around the world, New Zealand’s geographical isolation has protected us and given us time to prepare,” Biosecurity Minister Andrew Hoggard said in a government statement. “While we can’t prevent wild birds bringing this virus here, we can work together to limit its impact.”
If H5N1 does arrive, the expectation is that it will establish itself in the wild bird population and cannot then be wiped out. That makes the main threat one to native wildlife and to poultry flocks rather than to people. The Ministry for Primary Industries, DOC, the Ministry of Health and Health New Zealand have been working together with industry and local councils under a shared plan to get ready for that scenario.
The vaccination programme is only one part of the response. DOC is also building the ability to spot the virus early, since a fast detection would give rangers a chance to protect birds on offshore islands and in fenced sanctuaries before an outbreak spreads. The public is being asked to help by keeping away from sick or dead wildlife, cleaning outdoor gear, and reporting clusters of three or more sick or dead wild birds to the Ministry for Primary Industries hotline on 0800 80 99 66.
For poultry keepers, both commercial operators and people with a few backyard hens, the advice is to tighten everyday biosecurity now rather than wait. That means watching flocks for signs of illness and calling a vet if something seems wrong, keeping domestic birds away from wild ones and their droppings, and regularly cleaning boots, gear, surfaces and hands. MPI has also been consulting on proposed rules that would require commercial poultry operators to run formal biosecurity control programmes and submit to audits.
Health officials continue to stress that the risk to people remains low. Human infections with H5N1 have been rare around the world and have almost always involved close, prolonged contact with infected animals or contaminated places, with no evidence of the virus spreading easily between people. Properly cooked chicken and eggs remain safe to eat.
Even so, public health experts argue the Australian detection should sharpen New Zealand’s preparation across the board. Epidemiologist Michael Baker told RNZ the virus is “not showing any significant ability to transmit between people” and is not an immediate pandemic threat, while noting that most human pandemics begin in animals, which is why acting early matters.
For now the focus is on the birds that cannot be replaced. A dead virus in a small syringe, delivered to a few hundred of the country’s most precious creatures, is a quiet bet that a little foresight will pay off if and when the real thing finally reaches New Zealand.
What do you make of the plan to vaccinate our rarest birds ahead of bird flu? Share your thoughts in the comments below.
This article was written by AI, briefed to report the facts, hopefully without some of the bias people bring to the job 🙂
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