TY - JOUR T1 - Systemic lupus erythematosus: A risk factor for pneumonia caused by legionella micdadei? AU - Koch CA, Robyn JA, Coccia MR Y1 - 1997/12/08 N1 - 10.1001/archinte.1997.00440430152032 JO - Archives of Internal Medicine SP - 2670 EP - 2671 VL - 157 IS - 22 N2 - Since 1976, when Legionella pneumophila was first characterized, more than 34 species of this gram-negative, aerobic, non—spore-forming, unencapsulated bacillus have been described. Legionella pneumophila accounts for 85% of reported cases of pneumonia caused by Legionella. Of the remaining 15%, 60% are caused by Legionella micdadei. Legionella micdadei was first discovered in 1977 at the University of Pittsburgh (Pa) as a gram-negative, weakly acid-fast bacillus isolated from the lung tissue of patients who had undergone renal transplantation and developed pneumonitis. Legionella micdadei has emerged as a significant cause of nosocomial pneumonia in immunocompromised patients. We describe a patient with systemic lupus erythematosus (SLE) who suffered from pneumonia caused by L micdadei and review the literature on this topic.Report of a Case.  A 44-year-old white man with SLE diagnosed in 1981 experienced fevers (body temperature, 39.4°C) and headaches 1 week prior to admission to the hospital. In the past, he had SN - 0003-9926 M3 - doi: 10.1001/archinte.1997.00440430152032 UR - http://dx.doi.org/10.1001/archinte.1997.00440430152032 ER -