Experts Issue Reminders on Proper Usage of Wipes to Reduce Cross-Contamination

Gareth Williams, PhD, a microbiologist at the Welsh School of Pharmacy, notes, “Our surveillance study in its own right has been highly revealing in that it has highlighted the risks associated with the way decontamination products are currently being deployed in Welsh hospitals and the need for routine observation as well as proper training in the use of these wipes in reducing risks of infection to patients. On the whole, wipes can be effective in removing, killing and preventing the transfer of pathogens such as MRSA but only if used in the right way. We found that the most effective way is to prevent the risk of MRSA spread in hospital wards is to ensure the wipe is used only once on one surface.”

Maillard says the study is not a condemnation of antibacterial wipes, which remain an effective and easy way to decontaminate surfaces. “Decreasing microbial bioburden on surfaces is important and should contribute to a decrease in infection. One of the problems is the many different types and shapes of surfaces to clean. With this in mind, wipes are easy to use on any type and shape of surfaces and this is an advantage.”

When comparing wipes with germicides that are sprayed onto cloths and then applied to surfaces, Maillard says, “The use of a spray-on and cloth might be associated with some problems, as one might aerosolize and spread microorganisms widely on surfaces. We have just finished another study to compare the efficacy of an alcohol-impregnated wipe and a wipe onto which an alcohol is sprayed before used. By all accounts, the impregnated wipe was much better. So, it seems that impregnated wipes, if used appropriately, might contribute better to decreasing microbial bioburden from surfaces.”