Evaluation of a Disinfectant Wipe Intervention on Fomite-to-Finger Microbial Transfer

摘要: Inanimate surfaces, or fomites, can serve as routes of transmission enteric and respiratory pathogens. No previous studies have evaluated the impact surface disinfection on level pathogen transfer from fomites to fingers. Thus, present study investigated change in microbial contaminated fingers following disinfecting wipe use. Escherichia coli (10(8) 10(9) CFU/ml), Staphylococcus aureus (10(9) Bacillus thuringiensis spores (10(7) 10(8) poliovirus 1 PFU/ml) were seeded ceramic tile, laminate, granite 10-μl drops allowed dry for 30 min at a relative humidity 15 32%. The treated with disinfectant an additional 10 min. Fomite-to-finger trials conducted measure concentrations transferred microorganisms after intervention. mean log10 reduction test by treatment varied 1.9 5.0, depending microorganism fomite. Microbial disinfectant-wipe-treated was lower (up <0.1% average) than nontreated surfaces 36.3% average, reported our study) all types fomites. This is first quantifying use data generated be used quantitative risk assessment models predict effect wipes reducing exposure.