The Coorong, a vital wetland system in South Australia, is under heightened surveillance as authorities monitor the spread of H5 high pathogenicity avian influenza. While the virus has been detected in wild seabirds across Western Australia, South Australia, and New South Wales, officials are particularly focused on areas where migratory and local birds congregate, such as the Coorong, to prevent potential outbreaks among vulnerable populations. As of July 11, 2026, there are 13 confirmed detections of the H5 strain in wild birds nationwide, with five cases identified in South Australia.
This development follows the recent confirmation of the virus in a greater crested tern found at Robe in the state's southeast. Unlike previous detections in migratory subantarctic seabirds, this case involves a local, non-migratory species, prompting concerns about the virus's potential to establish itself within local wildlife. The Coorong serves as a critical feeding and breeding ground for numerous waterbird species, making it a high-priority site for environmental monitoring and biosecurity efforts.
Despite the spread of the virus in wild bird populations, there remains no evidence of mass mortality events or infections within commercial poultry flocks. The Australian government continues to emphasize that the risk to human health remains low. National coordination, led by the Department of Agriculture, Fisheries and Forestry, is focused on rapid detection and containment to protect both the agricultural sector and unique native wildlife.
Authorities are urging the public to remain vigilant and report any sightings of sick or dead birds to the Emergency Animal Disease Hotline. By avoiding contact with wildlife and reporting unusual behavior, the community plays a crucial role in supporting the national response. As the situation evolves, the focus remains on maintaining robust biosecurity measures to mitigate the long-term impact of the virus on Australia's biodiversity.