Abstract
The bactericidal activities and sustained effects of three commercially available antimicrobial products against multidrug-resistant Pseudomonas aeruginosa (MDRP) and multidrug-resistant Acinetobacter (MDRA) were evaluated. Potassium peroxymonosulfate based disinfectant cleaner (RST), sodium hypochlorite (NaOCl) and ethanol for disinfection (EtOH) demonstrated rapid bactericidal activities in the suspension test and the wiping test. Three disinfectants were applied to wells of a multiwell plate and dried. Wells were exposed to MDRP or MDRA at 3, 6, and 24 hours after application. Only RST demonstrated persistent bactericidal activity against MDRP and MDRA for up to 24 hours after application under experimental conditions. These results showed that RST is effective for preventing touch contamination from high-touch surfaces.
