军团杆菌科细菌引起的感染(见表1)包括军团病、与军团病有关的肺外脓肿及罕见的与肺炎无关的感染。军团病为全身性疾病,主要表现为肺炎。庞蒂亚克热为无肺炎的全身性发热病,与军团菌的气溶胶有密切关系,似属中毒,而非感染。军团杆菌普遍存在,经水源传播,为革 Legionella Bacillus infections (see Table 1) include Legionnaires ’disease, extra-pulmonary abscesses associated with Legionnaires’ disease and rare infections unrelated to pneumonia. Legionnaires’ disease is a systemic disease, mainly manifested as pneumonia. Pontiac fever is a systemic fever without pneumonia, which is closely related to the aerosol of Legionella, which is toxic and not infectious. Legionella common, spread by the water for the leather