What do rising cases of H5 bird flu mean for Australia?
As the CSIRO tests a cluster of dead and sick birds found in South Australia, there are growing fears the H5 flu virus is now spreading between local wildlife. Australia already has at least 20 confirmed cases, and the discovery of five dead birds in one location has prompted renewed calls by environmentalists for stronger action. But, the Australian Government says it's confident the nation's biosecurity system is responding appropriately.