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Bacteriological Monitoring of Water Reservoirs in Oxygen Humidifiers: Safety of Prolonged and Multipatient Use of Prefilled Disposable Oxygen Humidifier Bottles

Published online by Cambridge University Press:  21 June 2016

Nobuharu Kobayashi
Affiliation:
Department of Microbiology, Saitama Medical School, Moroyama, Iruma-gun, Saitama, Japan
Tsutomu Yamazaki*
Affiliation:
Department of Pediatrics, Saitama Medical School, Moroyama, Iruma-gun, Saitama, Japan Department of Infectious Diseases and Infection Control, Saitama Medical School, Moroyama, Iruma-gun, Saitama, Japan
Shigefumi Maesaki
Affiliation:
Department of Infectious Diseases and Infection Control, Saitama Medical School, Moroyama, Iruma-gun, Saitama, Japan
*
Department of Pediatrics, Saitama Medical School, Moroyama, Iruma-gun, Saitama 350-0495, Japan (benyama@saitama-med.ac.jp)

Abstract

Bacterial colony counts in water specimens from oxygen humidifiers that used reusable water reservoirs were compared with counts in water specimens from humidifiers that used prefilled disposable reservoir bottles to evaluate the effects of prolonged and multipatient use of humidifiers. Bacteria were detected after 1 week of operation in water specimens collected from many humidifiers with reusable reservoirs, but no bacteria were detected in water specimens from disposable bottles for up to 12 weeks during use of the humidifier by multiple patients.

Type
Concise Communications
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2006

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