Australia activates emergency protocols as H5 avian flu spreads across wildlife
Australia activates emergency containment measures as H5 avian flu detection expands to mainland wildlife populations.
Event / Health
H5 Avian Flu Australia Detection
H5 avian influenza confirmed in wild seabirds across Australia including Western Australia and sub-Antarctic territories, with emergency response protocols activated for threatened species protection.
5 reported locations
Daily activity
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2026-08-16 to 2026-11-13 · UTC publication dates
Coverage begins 18 Jun, 10:33 UTC
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What happened
Australia authorities convene emergency meeting on avian flu response
An emergency meeting of animal health and agriculture officials was held to consider a national response to the confirmed H5 avian influenza detection in Australia.
Australia implements protective breeding program for 35 threatened species at risk from avian flu
Australia's threatened species commissioner Fiona Fraser announced that a plan is in place to protect 35 species by strengthening their captive breeding programs. Species identified as particularly vulnerable to H5 avian flu include the Tasmanian devil, black swan, little penguin, and Australian sea lion.
Prime Minister Anthony Albanese declares H5 detection concerning and pledges containment measures
Australian Prime Minister Anthony Albanese stated that the detection of H5 avian flu in Australia is concerning and that the government will take measures to contain the spread of the disease. He noted that the disease arrived via migratory birds and occurs worldwide, for which Australia has been preparing.
H5 avian flu virus confirmed in wild seabird in Western Australia
The H5 strain of avian influenza was detected in a brown skua, a migratory seabird, in a remote region of Western Australia approximately 630 kilometers southeast of Perth. The discovery was confirmed by Australia's national science agency and announced by Agriculture Minister Julie Collins. A second presumed positive result was obtained from a giant petrel also found sick in the same area.
H5 avian flu has infected over 13,000 elephant seal pups in Australian subantarctic islands
Scientists announced that the H5 strain of avian influenza killed more than 13,000 elephant seal pups after infecting a breeding colony in the Heard and McDonald Islands, a subantarctic volcanic archipelago in the southern Indian Ocean that belongs to Australia.
Elephant seal pup mortality reaches 97% in some colonies
Australian Antarctic Program scientists reported that southern elephant seal pups were the most affected by the H5 avian flu epidemic on Heard and McDonald Islands, with mortality rates reaching up to 97% in some seal harems.
H5 avian flu likely introduced from French Crozet Islands
Researchers estimate that the H5 avian flu virus was likely introduced to Heard and McDonald Islands in August 2025 by infected wild animals that traveled from the Crozet Islands, a French subantarctic archipelago located approximately 1,500 kilometers to the northwest.
H5 avian flu reaches Australian territory for first time
The detection of H5 avian flu on Heard and McDonald Islands marks the first confirmed case in an Australian external territory, demonstrating the continued eastward progression of the virus across the southern Indian Ocean region.
H5 avian flu kills over 13,000 elephant seal pups on Heard and McDonald Islands
A pathogenic strain of H5 avian flu killed more than 13,000 elephant seal pups after infecting a breeding colony on Heard and McDonald Islands, a volcanic subantarctic archipelago in the southern Indian Ocean. Australian scientists announced the discovery on June 18, 2026. Researchers found the islands covered with seal carcasses when they arrived for a scientific mission in October 2025. Genetic analysis confirmed the contagious H5 avian flu strain killed seals, penguins, and birds on the rocky island. Ground and aerial surveys conducted in October 2025 and January 2026 documented 13,300 dead elephant seal pups.
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H5 avian flu devastates elephant seal colonies in remote Australian territory
H5 avian flu kills 13,000+ elephant seal pups with 97% mortality in some colonies.