More H5 avian flu cases detected in wild birds in Australia

Australia has confirmed the presence of the deadly H5 avian influenza virus in a fourth wild bird, with a fifth case suspected. A giant petrel in Western Australia tested positive for the disease, according to Australian Chief Veterinary Officer Beth Cookson. This follows two previous cases in Western Australia and another in South Australia. Samples from an additional giant petrel found near Esperance in southern Western Australia have been sent for testing.

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At this stage, there have only been detections in vagrant migratory seabirds that occasionally visit southern Australia.

The global spread of H5 bird flu, including its spillover into mammals like cattle and seals, has heightened concerns in Australia. The detections in wild birds raise worries about potential outbreaks among the country's poultry and livestock populations. However, Cookson emphasized that "at this stage, there have only been detections in vagrant migratory seabirds that occasionally visit southern Australia."

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There remains no evidence of any mass mortality events, and there are no detections in poultry or in our agricultural production system.

"There remains no evidence of any mass mortality events, and there are no detections in poultry or in our agricultural production system," she stated, adding that "the risk to human health remains low." Despite these assurances, the Inghams Group, a major Australian chicken producer, implemented a complete lockdown at its Western Australian operations this week as a precautionary measure after the disease was detected in the state, though no cases were found in its commercial poultry flocks.

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The risk to human health remains low.