PMID: 16527041Mar 11, 2006Paper

Descriptive study of a pneumonia episode due to Legionella

Revista clínica española
M J Muñoz MartínezL Piñeiro Amigo

Abstract

Legionella is a gram negative aerobic bacillus. A total of 42 species with 64 serogroups have been described, Legionella pneumophila serogroup 1 being the one that causes the disease most frequently. Describe an outbreak of legionellosis with some characteristics different from those communicated previously. Descriptive study of the epidemiological and clinical characteristics of the patients affected by an outbreak of pneumonia due to Legionella pneumophila serogroup 1, that occurred in Vigo in September and October, 2000, seen in the Hospital Xeral-Cies. A total of 33 patients, with a mean age of 61 years, were diagnosed. Fifty-nine percent had underlying diseases. The most frequent symptoms were fever, cough, dyspnea, diarrhea and awareness level alterations. Elevation of creatinphosphokinase in 79% and hyponatremia in 12%. The X-ray pattern observed most frequently was unilateral alveolar with predominant involvement of inferior lobes. A total of 77% received treatment with beta lactamics and macrolides, 13% beta lactamics and quinolones and 7% quinolones. Clinical and gasometric improvement were observed at a mean of 5 and 7 days, respectively. X-ray abnormalities improved in 62% in the first week. Eighteen percent had mul...Continue Reading

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