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Australia confirms the first H5N1 bird influenza case in a local seabird and dead seal is tested

Australia confirmed Friday the first case in Australia of the deadly H5N1 bird virus. It also said it was 'testing a seal that had died for possible infection. This has raised concerns about the disease spreading more widely since it arrived in the country last week.

The National Science Agency of Australia confirmed that the virus was present on a greater crested bird found in Robe, a coastal town in South Australia. Agriculture Minister Julie Collins confirmed this.

All other cases were found in seabirds migrating.

The total number of positive tests in the country now stands at 12, with two more infections confirmed on Friday in South Australia and another in Western Australia.

Collins stated that the situation was "concerning", but not surprising, and added that there were no signs of mass mortality or spread to poultry or other animal populations.

She said that "our scientists are doing further research to determine the 'potential pathway' which resulted in a?Australian Seabird infection".

What we know is that it is a coastal bird that shares a range with migratory birds that have tested positive for the H5 virus in the past.

Hamish McCallum is an infectious disease ecologist from Griffith University. He said that the virus spreading to local seabirds was "very bad."

He said that it is likely this case will be just the start of many more.

A spokeswoman for the New South Wales environment department confirmed that H5N1 tests were also being conducted on samples taken from a young seal who died in Central Coast, New South Wales.

If the test is positive, it would be the first time mainland Australia has confirmed a H5N1 infection in a mammal.

New South Wales is the third state in Australia to have detected H5N1, following a positive test from a migratory bird on the Mid-North Coast earlier this month.

Since 2021, the virulent strain has infected poultry farms, dairy farms, and some farmworkers. It has killed millions of birds and mammals.

In June, Australia became the 'last continent to confirm an H5N1 case on a continental level. The virus was first detected in 2025, in the subantarctic territory Heard Island.

Scientists estimate that the virus may have killed 13,000 seal pups at Heard Island.

(source: Reuters)