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Supplemental treatment of air in airborne infection isolation rooms using high-throughput in-room air decontamination units.
- Source :
-
American journal of infection control [Am J Infect Control] 2011 May; Vol. 39 (4), pp. 314-20. Date of Electronic Publication: 2010 Nov 20. - Publication Year :
- 2011
-
Abstract
- Background: Evidence has recently emerged indicating that in addition to large airborne droplets, fine aerosol particles can be an important mode of influenza transmission that may have been hitherto underestimated. Furthermore, recent performance studies evaluating airborne infection isolation (AII) rooms designed to house infectious patients have revealed major discrepancies between what is prescribed and what is actually measured.<br />Methods: We conducted an experimental study to investigate the use of high-throughput in-room air decontamination units for supplemental protection against airborne contamination in areas that host infectious patients. The study included both intrinsic performance tests of the air-decontamination unit against biological aerosols of particular epidemiologic interest and field tests in a hospital AII room under different ventilation scenarios.<br />Results: The unit tested efficiently eradicated airborne H5N2 influenza and Mycobacterium bovis (a 4- to 5-log single-pass reduction) and, when implemented with a room extractor, reduced the peak contamination levels by a factor of 5, with decontamination rates at least 33% faster than those achieved with the extractor alone.<br />Conclusion: High-throughput in-room air treatment units can provide supplemental control of airborne pathogen levels in patient isolation rooms.<br /> (Copyright © 2011 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Mosby, Inc. All rights reserved.)
- Subjects :
- Bacterial Load
Cross Infection prevention & control
Humans
Influenza A Virus, H5N2 Subtype drug effects
Influenza A Virus, H5N2 Subtype isolation & purification
Mycobacterium bovis drug effects
Mycobacterium bovis isolation & purification
Patient Isolators
Viral Load
Air Microbiology
Decontamination methods
Disinfection methods
Subjects
Details
- Language :
- English
- ISSN :
- 1527-3296
- Volume :
- 39
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- American journal of infection control
- Publication Type :
- Academic Journal
- Accession number :
- 21095042
- Full Text :
- https://doi.org/10.1016/j.ajic.2010.06.013