H5N1 Bird Flu Likely to Become Endemic in New Zealand Within Months, Government Warns

July 16, 2026

Wellington: New Zealand has confirmed its first case of the H5N1 avian influenza virus in a wild seabird, with government officials warning that the highly pathogenic virus could become endemic in the country within months if it establishes itself in wildlife.

The H5N1 virus was detected in a seabird found on Petone Beach in Wellington, marking the country’s first confirmed case during the ongoing global outbreak that has affected bird populations across several continents.

Officials Say Eradication Will Be Difficult if Virus Spreads in Wildlife

Ministry for Primary Industries’ Chief Veterinary Officer Mary van Andel said eradication would be unlikely if the virus becomes established among wild birds.

She noted that although transmission from birds to humans is possible, such infections remain rare. Authorities also stressed that the detection does not pose a food safety risk.

Scientists Warn Virus Could Become Established

Professor Dianne Brunton from the University of Auckland’s School of Biological Sciences said New Zealand’s geographic isolation would not be enough to keep the virus out permanently.

While there is currently no evidence of widespread bird deaths or sustained transmission among native bird populations, experts believe H5N1 is likely to become established over time.

Professor Jemma Geoghegan, a virologist at the University of Otago, said New Zealand had been preparing for the virus following its spread across Australia and other parts of the world. She emphasised the importance of rapid testing, genomic sequencing and continuous monitoring of wild bird populations.

Conservation Efforts Intensified to Protect Endangered Birds

In response to the detection, New Zealand’s Department of Conservation has begun vaccinating 300 breeding birds belonging to five of the country’s most endangered species, including the kākāpō and takahē, as part of its preparedness strategy.

Epidemiologist Nigel French from Massey University warned that small and critically endangered bird populations, including the New Zealand fairy tern, could face a serious risk of extinction if the virus spreads widely.

Health and wildlife authorities are continuing surveillance efforts and urging the public to report sick or dead wild birds as the country prepares for the possible long-term presence of H5N1.