Australia has reported its first mass mortality event from the H5N1 bird flu after dozens of greater crested terns died off the coast of South Australia, bringing the country's total confirmed cases to 74 across multiple states. Agriculture Minister Julie Collins warned the public to expect further spread and wildlife losses as the virus moves through the natural environment. While Australia's commercial poultry farms remain virus-free under strict lockdowns, authorities emphasize that while H5N1 can infect humans through animal contact, the overall risk to the public remains low.