H5N1 Bird Flu is here. Australia has finally been hit by the deadly H5N1 bird flu that’s been tearing through the rest of the world since 2021. Here is everything you need to know about the bird flu:What is bird flu? Article continues after this ad AdvertisementDidn’t we deal with bird flu? The full list can be found here: National risk scores for H5 bird flu for native birds and mammalsWe’ve already had a mass mortality of baby seals on Australia’s remote Heard Island.