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On a sub-Antarctic Island, hundreds of seal pups likely died from bird flu

Authorities said that Australian scientists found hundreds of dead pup seals on Heard Island, in the subantarctic. The signs they had on their bodies suggested that the birds flu virus that has been sweeping the world was responsible for the deaths.

Since 2021, the virulent strain H5N1 of bird flu has infected poultry farms, dairy farms, and some farmworkers. It has killed millions and affected wild bird populations.

In a press release, the Australian agriculture department stated that "at this stage there is no confirmed detection". It added that samples of dead seals would be sent to Australia for testing.

The ministry said that since the virus had already been detected on nearby French Kerguelen islands and Crozet Islands, it was not surprising to see symptoms of H5 bird influenza in wildlife on Heard Island.

Australia is the only continent that has not been infected by the virus. The virus could spread further through Antarctica, increasing the risk from the south.

Heard Island is the furthest south the influenza virus has spread in Antarctica since its arrival from South America, in 2023.

It is home to large numbers of seabirds, penguins, and seals. The volcano, which rises from the ocean more than 4,000 kilometers (2,486 mile) southwest of Perth, and about 1,700 km (1.060 miles north of Antarctica), was formed by a 2,745 meter (9,006 foot) high mountain.

Julie McInnes is an ecologist with the Australian Antarctic Division. She spent 10 days in Antarctica and found that animals were healthy until they came across hundreds of dead elephant pups.

McInnes said that a large number of pups were in this section.

Researchers will return to the island around the end of the year. It is not clear if the virus will spread.

The Agriculture Ministry said that the confirmation of bird influenza would not increase the risk of spreading it to Australia.

Australia is preparing for H5N1 bird influenza. It has tightened biosecurity on farms, tested shore birds for disease and vaccinated vulnerable species. Reporting by Peter Hobson, Canberra; Editing and production by Aurora Ellis and Clarence Fernandez

(source: Reuters)