BREAKING: Scientists have observed potential signs of H5 avian influenza (bird flu) in elephant seals at Heard Island, Australia, during a recent management expedition. This alarming development was confirmed by the Department of Agriculture, Fisheries and Forestry (DAFF) and the Department of Climate Change, Energy, the Environment and Water (DCCEEW) in a joint media release earlier today, October 24, 2025.
The situation is urgent as unusual mortality rates among elephant seals have raised concerns. Although the detection is not yet confirmed, it emphasizes the critical need for Australia to bolster its preparations for a potential outbreak. Currently, Australia remains the only continent free from the highly contagious H5 strain of bird flu.
Located over 4,000 km southwest of Perth and 1,700 km north of Antarctica, Heard Island is part of the external Australian territory and has reported unusual seal mortality in recent days. Observations were made by scientists aboard the RSV Nuyina, part of the Australian Antarctic Program, during an environmental management visit.
While there have been no indications of similar mortality in other species, including penguins and seabirds, the presence of H5 bird flu in wildlife on Heard Island is not unprecedented. Previous cases have been documented on nearby French sub-Antarctic islands, raising the stakes for immediate action.
Samples collected from the seals are being prepared for transportation to the CSIRO Australian Centre for Disease Preparedness for confirmatory testing, with results expected in several weeks. The RSV Nuyina is scheduled to return to Australia in mid-November, at which point the samples will be analyzed according to International Air Transport Association (IATA) Dangerous Goods Regulations.
In response to this potential threat, the Australian Government is investing over $100 million to enhance bird flu preparedness and response capabilities. This investment aims to safeguard both wildlife and public health, as the implications of an outbreak could be significant.
As this story develops, authorities urge the public to stay informed through official channels, including birdflu.gov.au for ongoing updates. The situation remains fluid, and immediate vigilance is crucial as scientists work to establish the extent of this potential outbreak.
Stay tuned for more updates as the situation unfolds.
