Three men and two women ranging from 51 to 71 years of age were hospitalized with Legionnaires’ disease in late March to early April. All five reported spending time in the eastern end of Melbourne’s central business district in the days before onset of illness. One of the patients required life support in intensive care but all have been discharged. Authorities are sampling in search for the source and have disinfected several systems and warned people experiencing pneumonia or flu-like symptoms to see their physician.