Australia confirms first H5N1 bird flu case from Antarctica

Australia has confirmed its first case of the highly pathogenic H5N1 bird flu strain, clade 2.3.4.4b, detected in a dying brown skua on its western coast. This marks the first time this destructive pathogen has reached the continent, which was previously the last free of this specific lineage. The virus appears to have arrived from Antarctica via seabirds, rather than the anticipated migratory flyways from Asia. While this finding does not currently affect Australia's poultry disease status, the potential spread to native duck populations is a significant concern for wildlife conservation. AI

RANK_REASON Detection of a specific, destructive pathogen in a new geographic region, with implications for wildlife and biosecurity. [lever_c_demoted from research: ic=1 ai=0.1]

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• Antarctica
• Australia
• brown skua
• clade 2.3.4.4b
• CSIRO’s Australian Centre for Disease Preparedness
• Deakin University
• southern giant petrel
• The Conversation
• University of Melbourne
• Western Australian government lab

• other

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