1976年7月,美国军团年会宾夕法尼亚分部在费城的一所旅馆举行4天集会。在会期和会后一段时间,与会退伍军人代表及其家属182人发生高热、咳嗽和肺炎,29人(16％)死亡。经流行病学和血清学调查,证实这是一种新发现的细菌引起的疾病,被命名为军团病或退伍军人病。临床表现和流行病学调查发现本病的前驱症状为轻微头痛、不适和肌肉 July 1976, the annual meeting of the U.S. Army Corps held a four-day rally in a hotel in Philadelphia. During the session and after the conference, 182 people, including representatives of the participating veterans and their families, had fever, cough and pneumonia and 29 (16%) died. Epidemiological and serological investigations confirmed that it was a newly discovered bacterial-caused disease and was named Legionnaires’ Disease or Veteran’s Disease. Clinical manifestations and epidemiological investigation found that the prodromal symptoms of this disease are mild headache, discomfort and muscle