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Article
November 1980

Cold Agglutinin Disease in a Patient With Legionnaires' Disease

Author Affiliations

From the Department of Medicine, Section of Infectious Diseases (Dr King), and the Department of Family Medicine (Dr May), Louisiana State University Medical Center, Shreveport.

Arch Intern Med. 1980;140(11):1537-1539. doi:10.1001/archinte.1980.00330220083031
Abstract

• We present a case of Legionnaires' disease complicated by cold agglutinin disease. Therapy with erythromycin gluceptate was associated with resolution of both the pneumonia and the hemolysis. Complement-fixing antibody levels to Mycoplasma pneumoniae, influenza A, and adenoviruses were measured repeatedly throughout the clinical illness and were persistently nondiagnostic. The cold agglutinin present in the patient's serum was characterized as an IgM that demonstrated anti-I specificity. Thus, Legionella pneumophila should be considered a potential causative agent in patients with pneumonia and cold agglutinin disease.

(Arch Intern Med 140:1537-1539, 1980)

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