H5N1 bird flu has now spread to all 7 continents EarthSky Key bird observatory shut for months before avian flu detection Australian Broadcasting Corporation How is the Australian poultry industry preparing for a possible outbreak of bird flu? The Conversation Watch 9News Latest Stories - Season 2026 - SA government ready to respond to the deadly H5 bird flu outbreak 9Now Government braces for H5 bird flu outbreak SMH.com.au