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发表于 2012-8-2 17:23:01
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Sustained Reduction of Microbial Burden on Common Hospital Surfaces through Introduction of Copper
Michael G. Schmidta, Hubert H. Attawaya, Peter A. Sharpeb, Joseph John Jr.c, Kent A. Sepkowitzd, Andrew Morgana, Sarah E. Faireya, Susan Singhd, Lisa L. Steede, J. Robert Canteyf, Katherine D. Freemang, Harold T. Michelsh and Cassandra D. Salgadof
+ Author Affiliations
aMedical University of South Carolina, Department of Microbiology and Immunology, Charleston, South Carolina, USA
bIrwin P. Sharpe and Associates, West Orange, New Jersey, USA
cRalph H. Johnson Veterans Affairs Medical Center, Charleston, South Carolina, USA
dMemorial Sloan Kettering Cancer Center, Department of Medicine, Division of Infectious Diseases, New York, New York, USA
eMedical University of South Carolina, Department of Pathology and Laboratory Medicine, Charleston, South Carolina, USA
fMedical University of South Carolina, Department of Medicine, Division of Infectious Diseases, Charleston, South Carolina, USA
gAlbert Einstein College of Medicine of Yeshiva University, Montefiore Medical Center, Department of Epidemiology and & Population Health, Bronx, New York, USA
hCopper Development Association, New York, New York, USA
ABSTRACT
The contribution of environmental surface contamination with pathogenic organisms to the development of health care-associated infections (HAI) has not been well defined. The microbial burden (MB) associated with commonly touched surfaces in intensive care units (ICUs) was determined by sampling six objects in 16 rooms in ICUs in three hospitals over 43 months. At month 23, copper-alloy surfaces, with inherent antimicrobial properties, were installed onto six monitored objects in 8 of 16 rooms, and the effect that this application had on the intrinsic MB present on the six objects was assessed. Census continued in rooms with and without copper for an additional 21 months. In concert with routine infection control practices, the average MB found for the six objects assessed in the clinical environment during the preintervention phase was 28 times higher (6,985 CFU/100 cm2; n = 3,977 objects sampled) than levels proposed as benign immediately after terminal cleaning ( |
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发表于 2012-8-2 17:23:00
