acute (sometimes fatal) lobar pneumonia caused by bacteria of a kind first recognized after an outbreak of the disease at an American Legion convention in Philadelphia in 1976; characterized by fever and muscle and chest pain and headache and chills and a dry cough

Disease caused by Legionella pneumophila, transmitted by air borne bacteria.

An acute bacterial pneumonia caused by infection with Legionella pneumophila and characterized by an influenza-like illness followed within 1 week by high fever, chills, muscle aches, and headache. Symptoms may include dry cough, inflammation of the membrane covering the lungs (pleurisy), and sometimes diarrhea.