Evaluation of the effects of footwear hygiene protocols on nonspecific bacterial contamination of floor surfaces in an equine hospital.
OBJECTIVE
To evaluate the effects of footwear hygiene protocols on bacterial contamination of floor surfaces in an equine hospital.


METHODS
Field trial.


METHODS
Footwear hygiene protocols evaluated included use of rubber overboots with footbaths and footmats containing a quaternary ammonium disinfectant, rubber overboots with footbaths and footmats containing a peroxygen disinfectant, and no restrictions on footwear type but mandatory use of footbaths and footmats containing a peroxygen disinfectant. Nonspecific aerobic bacterial counts were determined via 2 procedures for sample collection and bacterial enumeration (contact plates vs swabbing combined with use of spread plates), and the effects of each footwear hygiene protocol were compared.


RESULTS
There were no consistent findings suggesting that any of the protocols were associated with differences in numbers of bacteria recovered from floor surfaces. Although there were detectable differences in numbers of bacteria recovered in association with different footwear hygiene protocols, differences in least square mean bacterial counts did not appear to be clinically relevant (ie, were < 1 log10).


CONCLUSIONS
Although cleaning and disinfection of footwear are important aids in reducing the risk of nosocomial transmission of infectious agents in veterinary hospitals, the numbers of aerobic bacteria recovered from floor surfaces were not affected by use of rubber overboots or the types of disinfectant used in this study. Further study is warranted to evaluate the usefulness of footwear hygiene practices relative to their efficacy for reducing transmission of specific pathogens or decreasing nosocomial disease risk.
Animal Population Health Institute, Colorado State University, Fort Collins, CO 80523, USA.
Kelly A
KA
Stockton
Paul S
PS
Morley
Doreene R
DR
Hyatt
Brandy A
BA
Burgess
Gage
G
Patterson
Magda
M
Dunowska
David E
DE
Lee
D000818:Animals; D001494:Baths / Q000662:veterinary; D015169:Colony Count, Microbial / Q000662:veterinary; D003428:Cross Infection / Q000517:prevention & control / Q000662:veterinary*; D004202:Disinfectants / Q000494:pharmacology*; D004203:Disinfection / Q000379:methods*; D005430:Floors and Floorcoverings / Q000592:standards*; D006734:Horse Diseases / Q000382:microbiology; D006736:Horses; D006762:Hospitals, Animal / Q000592:standards*; D006920:Hygiene; D010545:Peroxides / Q000494:pharmacology; D012775:Shoes; D016896:Treatment Outcome
D004202:Disinfectants; D010545:Peroxides