<unk>  is an acute, nonfatal respiratory disease caused by various species of Gram-negative bacteria in the genus Legionella. It causes a mild upper respiratory infection that resembles acute influenza.<unk>  resolves spontaneously and often goes undiagnosed. Both<unk>  and the more severe Legionnaire's disease may be caused by the same bacteria, but<unk>  does not include pneumonia.<unk>  was named for<unk> , Michigan, where the first case was recognized. In 1968, several workers at the county's department of health came down with a fever and mild flu symptoms, but not pneumonia. After the 1976 Legionnaires' outbreak in Philadelphia, the Michigan health department re-examined blood samples and discovered the workers had been infected with the newly identified Legionella pneumophila. An outbreak caused by Legionella micdadei in early 1988 in the UK became known as Lochgoilhead fever. Since that time, other species of Legionella that cause<unk>  have been identified, most notably in New Zealand, in 2007 where Legionella longbeachae was discovered. The New Zealand outbreak also marked the first time<unk>  had been traced to potting soil.
Pontiac fever
Tomato fever
Haverhill fever
Pappataci fever
Boutonneuse fever
Rat-bite fever
Spotted fever
Cotton fever