348. Environmental contamination with methicillin-resistant Staphylococcus aureus and vancomycin resistant Enterococcus after routine cleaning and disinfection of hospital rooms
Session: Poster Abstract Session: MRSA, MSSA, Enterococci
Thursday, October 3, 2013
Room: The Moscone Center: Poster Hall C

Background: Contaminated environmental surfaces are an important source for transmission of healthcare-associated pathogens such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE). However, limited data are available on the frequency of environmental contamination with these pathogens and the effectiveness of environmental disinfection practices in hospitals that do not routinely screen patients for carriage.  

Methods: In 10 Ohio hospitals (7 community hospitals and 3 teaching hospitals), cultures for MRSA and VRE were collected from high-touch surfaces (bedside table/bed rail, toilet seat/bathroom handrail, and telephone/call button) in a convenience sample of Clostridium difficile infection (CDI) isolation rooms and non-isolation rooms after completion of terminal cleaning and disinfection by environmental services personnel.     

Results: Of 211 total rooms cultured, 36 (17%) had positive cultures for MRSA and/or VRE after completion of terminal cleaning. Overall, 23% of CDI rooms and 9% of non-isolation rooms had VRE or MRSA contamination on high-touch surfaces after completion of terminal cleaning (Figure). The frequency of contamination varied widely among the hospitals (VRE contamination: range, 0% to 30%; MRSA contamination: range, 0 to 25%). The bedside table/bed rail was the site most frequently contaminated with VRE (%) and MRSA (9%). All facilities reported using bleach for terminal disinfection of CDI rooms.

Conclusion: MRSA and VRE were frequently cultured from CDI isolation and non-isolation rooms after cleaning and disinfection by environmental services personnel. Such contamination could provide an underappreciated reservoir for transmission.

Figure: Percentage of positive cultures for MRSA and VRE from CDI isolation rooms and non-isolation rooms after terminal cleaning and disinfection by environmental services personnel in 10 hospitals

Brett Sitzlar, B.S.1, Abhishek Deshpande, M.D., Ph.D.1, Dennis Fertelli1, Jennifer Cadnum, B.S.1, Priyaleela Thota, MD1, Erica Pozwick1, Sirisha Kundrapu, M.D.1, Venkata C.K. Sunkesula, M.D., M.S2, Amy Ray, MD3, Robert Salata, MD4 and Curtis Donskey, MD1,5, (1)Infectious Diseases, Case Western Reserve University, Cleveland, OH, (2)Case Western Reserve University, Cleveland, OH, (3)Medicine, University Hospitals Case Medical Center, Cleveland, OH, (4)University Hospitals Case Medical Center, Cleveland, OH, (5)Infectious Diseases, Cleveland VA Medical Center, Cleveland, OH

Disclosures:

B. Sitzlar, None

A. Deshpande, None

D. Fertelli, None

J. Cadnum, None

P. Thota, None

E. Pozwick, None

S. Kundrapu, None

V. C. K. Sunkesula, None

A. Ray, None

R. Salata, None

C. Donskey, None

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