Bird flu has been evolving and migrating for 30 years. It is a far more deadly virus that has now arrived in Australia (theguardian.com)
"Low pathogenic viruses come in and, with high densities of birds and large numbers, you have an ideal environment for a virus to evolve. All of the high pathogenicity influenza viruses evolve in poultry.” #H5N1 #birdflu #FactoryFarming www.theguardian.com/world/2026/a...