At an American Legion meeting in Philadelphia in 1976, amoebas containing Legionella bacteria were blown through air-conditioning ducts into the hotel and delivered deep into the conventioneer's lungs. Macrophages [white blood cells within tissues] in the humans' alveoli [primary sites of gas exchange with the blood in the respiratory system] ingested the Legionella, much as an amoeba would. Thirty-four people died of the resulting respiratory illness, and Legionnaires' disease was born.Keywords: history, nomenclature, microbiology, legionellosis
 B. Brett Finlay: The Art of Bacterial Warfare. Scientific American February 2010, Volume 302, Number 2, pp. 57-63.