Contamination of environmental surfaces by methicillin-resistant Staphylococcus aureus (MRSA) in rooms of inpatients with MRSA-positive body sites.
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)/100cm(2), respectively, for the overbed tables and 31.6% (6/19 samples) and 159.5 (0-1620)cfu/100cm(2), 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.
Pharmaceutical Service, Yamaguchi University Hospital, Minamikogushi, Ube, Japan.
E Jessica Ohashi
EJ
Kurashige
Pharmaceutical Service, Yamaguchi University Hospital, Minamikogushi, Ube, Japan. Electronic address: oie-ygc@umin.ac.jp.
Shigeharu
S
Oie
Pharmaceutical Service, Yamaguchi University Hospital, Minamikogushi, Ube, Japan.
H
H
Furukawa
D003428:Cross Infection; D004783:Environmental Microbiology; D006801:Humans; D055624:Methicillin-Resistant Staphylococcus aureus / Q000302:isolation & purification*; D013203:Staphylococcal Infections / Q000382:microbiology*
Bed side rail; Contamination; Curtain; Methicillin-resistant Staphylococcus aureus; Overbed table