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Bacterial Contamination Degree of Gowns Worn during Care for Patients Infected with MRSA and Sterilization Effect with Ultraviolet Irradiation Ayako Kudo 1 , Junko Suzuki 1 , Keiko Hattori 1 , Michiko Takamine 1 , Mihoko Yamaguchi 1 , Michiko Murakami 1 , Nobuko Yamashita 1 , Yoshiko Shimamori 2 , Emiko Horiki 2 , Ikuko Tanaka 2 1Juntendo Medical College of Nursing 2Mukojima Hospital Keyword: MRSA , 紫外線照射 , 予防衣 , 殺菌 , Ultraviolet irradiation , Gown , Sterilization pp.269-276
Published Date 1998/6/15
DOI https://doi.org/10.11477/mf.1681900458
  • Abstract
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 We have been examining the most effective and efficient usage of gowns worn for the purpose of prevention of bacterial infection. Here we examined the degree of bacterial contamination on gowns worn during the care of patients infected with methicillin resistant Staphylococcus aureus (MRSA), and the effect of ultraviolet irradiation for the sterilization of gowns. An average of about 16 colonies of bacteria per plate (30cm2) were detected on the outer surfaces of 20 unirradiated gowns. MRSA was detected on one unirradiated gown. The average number of colonies of bacteria detected on the inner surfaces of the unirradiated gowns was one. MRSA Was not detected at this site. Two used gowns were placed in a locker equipped with ultraviolet lamps, and irradiated The average number of colonies detected on the outer surfaces of the gowns irradiated for five minutes was about one, and dropped to 0.5 colonies with 15 minutes irradiation. MRSA was not detected from any gown irradiated with ultraviolet. Similar results were obtained in in vitro experiments. Thus, it became clear that ultraviolet irradiation on gowns hung in a locker was effective for the sterilization of bacteria contaminated on the outer surfaces of gowns.


Copyright © 1998, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1405 印刷版ISSN 0022-8370 医学書院

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