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Traditional Cleaning Methods Ineffective
In a study at a Cleveland, OH Veterans Administration hospital, cleaning methods the housekeeping staff were using prior to an educational intervention were only successful in eliminating surface contamination by serious human pathogens about 23-25% of the time.
Dr. Paul Darby, MD, PhD, MPH, CIME, FACOEM
By Kelly R. Bright, PhD, Stephanie A. Boone, MPH, PhD, and Charles P. Gerba, PhD
The presence of microorganisms on common classroom contact surfaces (fomites) was determined to identify the areas most likely to become contaminated. Six elementary classrooms were divided into control and intervention groups (cleaned daily with a quaternary ammonium wipe) and tested for heterotrophic bacteria. Three classrooms were also tested for norovirus and influenza A. Frequently used fomites were the most contaminated; water fountain toggles, pencil sharpeners, keyboards and faucet handles were the most bacterially contaminated; desktops, faucet handles and paper towel dispensers were the most contaminated with viruses. Influenza A virus was detected on up to 50% and norovirus on up to 22% of surfaces throughout the day. Children in the control classrooms were 2.32 times more likely to report absenteeism due to illness than children in the intervention classrooms and were absent longer (on average). Improved classroom hygiene may reduce the incidence of infection and thus student absenteeism.
Authors: Kelly R. Bright, PhD, Stephanie A. Boone, MPH, PhD, and Charles P. Gerba, PhD
The Journal of School Nursing OnlineFirst, published on November 10, 2009 as doi:10.1177/1059840509354383
JOSN, Vol. 000 No. 00, Month 2009 1-9
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