The Australian government has verified the first instance of the deadly H5N1 avian influenza strain on the mainland. The strain was identified in a migratory bird discovered in Western Australia, as confirmed by the Australian Center for Disease Preparedness. This marks the initial case of the highly pathogenic H5N1 strain in mainland Australia, a virus that has caused significant bird and animal fatalities globally since 2020.
A second bird, a giant petrel, was also found ill in the vicinity and has been placed under quarantine. The government had previously allocated 113 million Australian dollars to brace for a potential outbreak of the H5N1 strain. Minister Julie Collins emphasized the importance of early investments based on global occurrences of the virus.
Australia’s Chief Veterinary Officer, Beth Cookson, advised the public to steer clear of sick or deceased birds and promptly report such instances to the Emergency Animal Disease hotline. Fiona Fraser, the Threatened Species Commissioner, mentioned that authorities would swiftly determine if the strain had established itself in any Australian bird populations.
The H5N1 bird flu strain had not been detected on the Australian mainland until now, making Australia the sole continent without prior cases. While the strain can rapidly spread among bird populations, human cases linked to the disease are infrequent. Last year, the H5N1 strain was identified on the remote Australian territories of Heard and McDonald Islands in the southern Indian Ocean.
