Australia’s suspected H5 bird flu case ‘sobering but not unexpected

A suspected case of H5 avian influenza was identified on June 14 at Cape Le Grand beach in Western Australia, according to state officials. The case involves a deceased brown skua seabird, marking a potential first for the H5 strain on the Australian continent, where $113 million has been allocated for preparedness.

What happened at Cape Le Grand beach?

Western Australia’s Agriculture Minister Jackie Jarvis confirmed that a brown skua seabird, a sub-Antarctic migratory species, died while in isolation. Ms. Jarvis noted it isn’t normal for these birds to be on the south coast of Western Australia, though sick birds are sometimes blown off course.

A second bird, a giant petrel, is also undergoing testing. Australia has previously been the last continent free of this specific H5 strain of bird flu.

Federal Agricultural Minister Julie Collins stated that the arrival of the strain was expected. She described the potential confirmation as “sobering but not unexpected” given the global spread of the virus.

How does H5 bird flu affect humans and animals?

Avian influenza is a highly contagious virus. While it primarily affects birds, it can spread to mammals, including domestic pets like cats and dogs, farm animals such as dairy cows and pigs, and marine mammals like dolphins and seals.

In poultry, symptoms include sudden death, difficulty breathing, and a rapid drop in egg production. The virus spreads through body fluids, droppings, feathers, and contaminated items like egg cartons.

Human infection is rare and typically occurs through close contact with infected poultry or contaminated environments. Some people in the U.S. contracted the virus through exposure to dairy cows. Symptoms include fever, cough, sore throat, and muscle aches.

There are currently no commercially available vaccines for humans or other mammals, though some are being trialled. According to officials, there’s no evidence that the current H5 strain spreads between people.

What are the global impacts of H5N1?

The World Health Organization (WHO) recorded 1,204 poultry outbreaks, 6,326 wild bird outbreaks, and nine bovine outbreaks between July 1, 2025, and March 1, 2026. In March 2026 alone, the World Organization for Animal Health (WOAH) reported that approximately 5,611,000 poultry birds died or were culled.

The United States has seen significant agricultural losses. Dr. Michelle Wille, a microbiology and immunology expert, noted that over 200 million chickens have been culled in the U.S. Since March 2024, 989 dairy herds across 17 U.S. states have confirmed cases.

Two people have died from the virus after working with infected animals. The virus has been detected in birds and animals across every continent except Australia.

How does this compare to previous Australian outbreaks?

Australia has faced other bird flu strains, but they differ from H5N1. According to the Australian Centre for Disease Control, previous outbreaks were limited to poultry and successfully eliminated.

In February 2025, the H7N8 strain hit poultry farms in north-east Victoria. A year earlier, the H7N3 strain affected properties in south-west Victoria. In 2013, an H7 outbreak in Young, New South Wales, led to the destruction of nearly 450,000 birds.

Unlike those previous cases, H5N1 is linked to “catastrophic” wildlife decreases. Carol Booth of the Invasive Species Council warned that the virus’s ability to infect mammals raises the prospect of severe impacts on marine mammals and native birds.

What happens next?

State and territory leaders are scheduled to meet to discuss next steps, which may include increased surveillance. The government has already allocated $113 million toward preparedness measures.

Public health officials advise people to avoid areas with multiple sick or dead birds. Minister Collins stressed that people should not touch sick or dead animals. If a bird is found, the public is encouraged to take photos from a safe distance and report it to birdflu.gov.au or the Emergency Animal Disease Hotline at 1800 675 888.

Frequently Asked Questions

Can H5 bird flu spread between humans?
No, according to the provided text, there is no evidence that the current H5 bird flu strain spreads between people.

What should I do if I find a dead bird?
Avoid the area and do not touch the animal. You can take photos from a safe distance and report the finding to birdflu.gov.au or the Emergency Animal Disease Hotline on 1800 675 888.

Has Australia ever had bird flu before?
Yes, but previous outbreaks involved different strains, such as H7N8 and H7N3, which occurred in poultry and were successfully eliminated.

How do you think the potential arrival of H5 bird flu will affect local wildlife conservation efforts?