Migratory seabird known as brown skua tests positive for avian influenza

Testing confirms spread of deadly H5N1 virus on the subantarctic Heard Island, about 4,000km south-west of Perth

The H5 avian influenza has never been detected on mainland Australia before — the last continent on Earth without a confirmed case.

Migratory seabird known as brown skua tests positive for avian influenza