what is legionnaires
Legionnaires' disease, also known as legionellosis or Legion fever, is a form of atypical pneumonia caused by any type of Legionella bacteria.Over 90% of cases of Legionnaires' disease are caused by Legionella pneumophila.Other causative species include L. longbeachae, L. feeleii, L. micdadei, and L. anisa.egionnaires' disease, also known as legionellosis or Legion fever, is a form of atypical pneumonia caused by any type of Legionella bacteria. Over 90% of cases of Legionnaires' disease are caused by Legionella pneumophila. Other causative species include L. longbeachae, L. feeleii, L. micdadei, and L. anisa.