On July 10, 2026, scientists confirmed the presence of the highly contagious H5 bird flu in a greater crested tern, marking the first detection of this strain in Australia’s local wildlife. This announcement was made by the government during a news conference in Hobart, Tasmania, following years of Australia being free from the H5 strain.
A total of 12 cases of H5 bird flu have been detected in Australia since June, all in migratory seabirds. The recent case in South Australia was confirmed through laboratory testing of the infected tern found in Robe. Agriculture Minister Julie Collins emphasized that while this development is concerning, there is currently no evidence of mass mortality linked to the virus.
Implications of H5 Bird Flu for Australian Wildlife
Australia has long been considered a sanctuary for many unique species, with almost half of its wild bird species and 83% of its mammals found nowhere else. The introduction of the H5 bird flu poses a potential threat to this biodiversity. Collins stated, “While this, of course, is a concerning development, it is not unexpected.”
Enhanced surveillance measures have been implemented in the area surrounding where the tern was found. The government is investigating how the virus may have arrived, suspecting migratory birds from the sub-Antarctic regions. There is a particular concern for coastal seabirds that share habitats with these migratory species.
