Bird flu outbreaks have been reported on Australian farms, primarily affecting laying hens and ducks. The highly pathogenic H7N3 virus has been detected on seven poultry farms in Victoria, leading to the slaughter of over a million chickens and ducks. The epidemic has now spread to a layer farm in a neighboring state. In response, supermarket chains have limited egg purchases from vulnerable regions. Authorities have implemented biosecurity measures to limit the spread of the bird flu.