Brief introduction The finding of Legionella 1976 An annual veteran meeting in Philadelphia Mortality rate: 34 in 221/15% Named legionella pneumophila in 1978 immunofluorescenceBrief introduction The finding of Legionella • 1976 • An annual veteran meeting in Philadelphia • Mortality rate: 34 in 221 / 15% • Named legionella pneumophila in 1978 immunofluorescence