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Nosocomial Legionnaires' disease
Zhonghua Yi Xue Za Zhi = Chinese Medical Journal; Free China Ed
|October 1, 1989
Summary
Nosocomial Legionnaires
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Hospital Epidemiology
Background:
- The first documented outbreak of nosocomial Legionnaires' disease was in 1965.
- Legionella pneumophila was identified as the causative agent following the 1976 Philadelphia outbreak.
- Nosocomial outbreaks have been documented in immunocompromised patients, such as renal transplant recipients.
Purpose of the Study:
- To review the history and diagnostic challenges of nosocomial Legionnaires' disease.
- To highlight the importance of diagnostic methods in identifying Legionella outbreaks.
- To emphasize the need for a multidisciplinary approach to control Legionella infections.
Main Methods:
- Retrospective analysis of historical outbreak data.
- Review of diagnostic techniques including indirect fluorescent antibody (IFA) and direct fluorescent antibody (DFA) tests.
- Literature review on Legionella epidemiology and control.
Main Results:
- Early outbreaks were challenging to diagnose until specific serological and direct tests were developed.
- The indirect fluorescent antibody (IFA) test was crucial for diagnosing the 1965 outbreak.
- The direct fluorescent antibody (DFA) test confirmed L. pneumophila in lung tissue during a 1975 outbreak.
Conclusions:
- Prospective surveys using sensitive diagnostic methods are needed to understand the full scope of nosocomial Legionnaires' disease.
- Legionella is a significant global nosocomial pathogen.
- Effective control requires collaboration among healthcare professionals, epidemiologists, microbiologists, and engineers.
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