ANKARA At least 31 people have died so far this year in northern Australia from an outbreak of a tropical disease linked to heavy rainfall and flooding. According to the latest data from the health department in Queensland, there were four new cases reported in the past week: one in Townsville and three in the city of Cairns, taking the total number of reported cases in the state this year to 221, the Australian Broadcasting Corporation reported Wednesday. The latest fatality from the soil-