本文报道一组33例免疫抑制的患者,因急性发热性肺炎住血液科。通过间接荧光抗体技术进行特异性血清学试验,4例诊断为军团病。其基础疾病,3例为毛细胞性白血病,一例是同种骨髓移植患者。从所观察的临床症状和体征,及经气管采取之标本,未发现任何其它病原菌,且在红霉素治疗下,病情进展。但在研究期间,未采用直接荧光抗体和/或培养 This article reports a group of 33 patients with immunosuppressed, due to acute fever pneumonia living hematology. Specific serological tests were performed by indirect fluorescent antibody technique and 4 cases were diagnosed as Legionnaires’ disease. The underlying disease, 3 cases of hairy cell leukemia, a case of allogeneic bone marrow transplant patients. From the observed clinical symptoms and signs, and tracheal specimens taken, did not find any other pathogens, and erythromycin treatment, the disease progresses. However, no direct fluorescent antibodies and / or culture were used during the study