Brazilian Journal of Microbiology Brazilian Journal of Microbiology
Braz J Microbiol 2016;47:703-5 - Vol. 47 Num.3 DOI: 10.1016/j.bjm.2016.04.002
Medical Microbiology
Contamination of environmental surfaces by methicillin-resistant Staphylococcus aureus (MRSA) in rooms of inpatients with MRSA-positive body sites
E. Jessica Ohashi Kurashige, Shigeharu Oie, , H. Furukawa
Pharmaceutical Service, Yamaguchi University Hospital, Minamikogushi, Ube, Japan
Received 07 November 2014, Accepted 08 January 2016
Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) can contaminate environmental surfaces that are frequently touched by the hands of patients with MRSA colonization/infection. There have been many studies in which the presence or absence of MRSA contamination was determined but no studies in which MRSA contamination levels were also evaluated in detail. We evaluated MRSA contamination of environmental surfaces (overbed tables, bed side rails, and curtains) in the rooms of inpatients from whom MRSA was isolated via clinical specimens. We examined the curtains within 7–14 days after they had been newly hung. The environmental surfaces were wiped using gauze (molded gauze for wiping of surface bacteria; 100% cotton, 4cm×8cm) moistened with sterile physiological saline. The MRSA contamination rate and mean counts (range) were 25.0% (6/24 samples) and 30.6 (0–255)colony-forming units (cfu)/100cm2, respectively, for the overbed tables and 31.6% (6/19 samples) and 159.5 (0–1620)cfu/100cm2, respectively, for the bed side rails. No MRSA was detected in 24 curtain samples. The rate of MRSA contamination of environmental surfaces was high for the overbed tables and bed side rails but low for the curtains. Therefore, at least until the 14th day of use, frequent disinfection of curtains may be not necessary.

Keywords
Methicillin-resistant Staphylococcus aureus, Curtain, Overbed table, Bed side rail, Contamination
Braz J Microbiol 2016;47:703-5 - Vol. 47 Num.3 DOI: 10.1016/j.bjm.2016.04.002