The role and significance of certain waterborne bacteria and fungi as nosocomial pathogens remains controversial. However, the role of Legionella pneumophila as a waterborne nosocomial pathogen is now undisputed. The epidemiologic reservoir for Legionella is extrinsic to the host, making prevention possible. Establishing the epidemiologic link between cases of Legionnaires' disease and the presence of Legionella in hospital water systems resulted in a pro-active interventional approach to disinfect the hospital water system. This approach has been effective in controlling Legionnaires' disease. The link between Mycobacteria avium intracellulare, Fusarium and Aspergillus to hospital water supplies are now being explored. Approaches to water system disinfection that have been successful for controlling nosocomial Legionnaires' disease include thermal disinfection, hyperchlorination and the newest method, copper-silver ionization. Disinfection methods will be reviewed as well as their potential for controlling other waterborne pathogens.
Full conference title:
38th Interscience Conference on Antimicrobial Agents and Chemotherapy
- ICAAC 38th