Suspected H5 Bird Flu Detected in Western Australia as Samples Sent for Confirmation

Australia has recorded a suspected case of H5 bird flu in Western Australia, in what would be the first confirmed detection of the virus on mainland Australia if laboratory testing verifies the result. Federal Agricultural Minister Julie Collins said initial testing at a Western Australian laboratory had returned a suspected positive result for avian influenza. Samples have now been sent to the CSIRO's Australian Centre for Disease Preparedness for further analysis.

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Ms Collins said the Western Australia Department of Primary Industries and Regional Development was investigating the case. She said there was no evidence at this stage of mass mortality, and no evidence of infection in poultry. The minister also said the national response would be coordinated by the Department of Agriculture, Fisheries and Forestry, while Western Australia would lead the local response.

The government has also brought together states, territories and industry experts to discuss the situation. The suspected detection is significant because Australia is the last continent without a confirmed case of bird flu. The H5 strain has caused severe losses in wildlife and other animal populations in other parts of the world, including seabirds and seals.

Bird flu can also affect mammals, and the virus has already had a documented impact on seals on Heard Island, a remote Australian territory. If confirmed, the Western Australia case would mark a major change in Australia's biosecurity position. The announcement comes after years of preparation by Australian authorities for the possible arrival of the H5 strain.

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Ms Collins said the country was well placed to respond and manage the situation, reflecting the national focus on surveillance and containment. The case also highlights the role of laboratory confirmation in animal disease response, with the initial result still needing verification at the federal reference facility. In practical terms, the next steps will shape whether the incident remains a suspected detection or becomes the country's first mainland confirmation.

Authorities have asked the public not to touch sick or dead birds or other animals. Ms Collins said people who see multiple sick or dead birds or animals should photograph or record them from a safe distance, note the location and report the sighting through the bird flu reporting system. That advice suggests officials are trying to limit unnecessary contact while investigators assess whether the virus is present more widely.

The absence of poultry infection is also important for the agricultural sector, which would face greater disruption if the virus were found in domestic flocks. What remains unclear is whether the suspected result will be confirmed as H5 bird flu and whether the case is isolated or part of a wider animal health event. Officials have not reported mass mortality, and there is no confirmed poultry involvement at this stage.

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