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Efficacy of directed misting application of a peroxygen disinfectant for environmental decontamination of a veterinary hospital.

Authors
Morley-P; Patterson-G; Blehm-K; Lee-D
Source
J Am Vet Med Assoc 2005 Aug; 227(4):597-602
NIOSHTIC No.
20029782
Abstract
To evaluate effectiveness of 4% peroxymonosulfate disinfectant applied as a mist to surfaces in a large animal hospital as measured by recovery of Staphylococcus aureus and Salmonella enterica serovar Typhimurium. Field trial. Polyester transparencies inoculated with bacteria. Polyester transparencies were inoculated with S aureus or S Typhimurium and placed in various locations in the hospital. After mist application of the peroxygen disinfectant, viable bacterial numbers were quantified and compared with growth from control transparencies to assess reduction in bacterial count. When applied as a mist directed at environmental surfaces contaminated with a geometric mean of 4.03 x 10(7) CFUs of S aureus (95% confidence interval [CI], 3.95 x 10(7) to 4.11 x 10(7)) or 6.17 x 10(6) CFUs of S Typhimurium (95% Cl, 5.55 x 10(6) to 6.86 x 10(6)), 4% peroxymonosulfate reduced the geometric mean number of viable S aureus by 3.04 x 10(7) CFUs (95% Cl, 8.6 x 10(5) to 1.7 x 10(6)) and S Typhimurium by 3.97 x 10(6) CFUs (95% Cl, 8.6 x 10(5) to 3.5 x 10(6)). Environmental disinfection with directed mist application of a 4% peroxymonosulfate solution was successful in reducing counts of bacterial CFUs by > 99.9999%. Directed mist application with this peroxygen disinfectant as evaluated in this study appeared to be an effective and efficient means of environmental disinfection in a large animal veterinary hospital and would be less disruptive than more traditional approaches to intensive environmental cleaning and disinfection.
Keywords
Veterinarians; Veterinary-medicine; Health-care-facilities; Medical-facilities; Disinfectants; Animals; Bacteria
CODEN
JAVMA4
Publication Date
20050815
Document Type
Journal Article
Funding Type
Grant
Fiscal Year
2005
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T01-CCT-810435
Issue of Publication
4
ISSN
0003-1488
Source Name
Journal of the American Veterinary Medical Association
State
CO
Performing Organization
Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado
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