Journal of Antimicrobial Chemotherapy (1999) 43, 747-752
© 1999 The British Society for Antimicrobial Chemotherapy
Leading article |
The treatment of Legionnaires' disease
a Department of Clinical Infection, City General Hospital, North Staffordshire Hospitals NHS Trust, Stoke on Trent ST4 7LN; b Department of Infection and Tropical Medicine, Birmingham Heartlands Hospital, Birmingham B9 5SS, UK
Introduction
The Legionellaceae family contains over 40 recognized species, but less than half of these cause disease in humans. The most frequently pathogenic species is Legionella pneumophila, of which there are 14 serogroups. L. pneumophilaaccounts for 90% (and serogroups 1- 6 for 85%) of all infections. Other important species include Legionella micdadei, Legionella bozemanii, Legionella dumoffii and Legionella longbeachae.The principal clinical illness is pneumonia (Legionnaires' disease), although L. pneumophila has also been implicated in cases of endocarditis and myocarditis, and in haemodialysis infections.
Treatment recommendations for Legionnaires' disease are largely
based on clinical experience of the first recognized outbreak in Philadelphia in 1976; in a
retrospective review, patients treated with erythromycin or tetracycline had a 50% lower
mortality rate compared with patients treated with ß-lactams.1 Subsequently, erythromycin became the treatment ofchoice. More recently, a
number of new antimicrobial agents have appeared, but formally assessing their comparative
efficacy in treatment
Assessment of antimicrobials
Macrolides
Quinolones
Other antimicrobials
Combination therapy
Choice of therapy
Notes
References
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