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Background  Pre-wetted disinfectant wipes are increasingly being used in healthcare facilities to help address the risk of healthcare associated infections (HAIs). However, HAIs are still a major problem in the US with  Clostridioides difficile  being the most common cause, leading to approximately 12,800 deaths annually in the US. An underexplored risk when using disinfectant wipes is that they may cross-contaminate uncontaminated surfaces during the wiping process. The objective of this study was to determine the cross-contamination risk that pre-wetted disinfectant towelettes may pose when challenged with  C. difficile  spores. We hypothesized that although the tested disinfectant wipes had no sporicidal claims, they will reduce spore loads. We also hypothesized that hydrogen peroxide disinfectant towelettes would present a lower cross-contamination risk than quaternary ammonium products.    Methods  We evaluated the risk of cross-contamination when disinfectant wipes are challenged with  C. difficile  ATCC 43598 spores on Formica surfaces. A disinfectant wipe was used to wipe a Formica sheet inoculated with  C. difficile . After the wiping process, we determined log 10  CFU on previously uncontaminated pre-determined distances from the inoculation point and on the used wipes.    Results  We found that the disinfectant wipes transferred  C. difficile  spores from inoculated surfaces to previously uncontaminated surfaces. We also found that wipes physically removed  C. difficile  spores and that hydrogen peroxide disinfectants were more sporicidal than the quaternary ammonium disinfectants.    Conclusion  Regardless of the product type, all disinfectant wipes had some sporicidal effect but transferred  C. difficile  spores from contaminated to otherwise previously uncontaminated surfaces. Disinfectant wipes retain  C. difficile  spores during and after the wiping process.

Disinfectant wipes transfer Clostridioides difficile spores from contaminated surfaces to uncontaminated surfaces during the disinfection process