Melbourne was experiencing the outbreak of an antibiotic-resistant germ, health authorities warned yesterday, and they urged hospitals to take immediate steps to try to halt the spread of the potentially deadly bacteria. Several of the city's biggest hospitals - including the Alfred, the Austin and Repatriation Medical Centre, Royal Melbourne and Box Hill - have recently detected the presence of the germ and, as The Age disclosed yesterday, more than a dozen patients have been found to have the germ.