Methicillin-resistant Staphylococcus aureus contamination of hospital-use-only mobile phones and efficacy of 222-nm ultraviolet disinfection

•Shared devices may become contaminated with nosocomial pathogens in hospitals.•Five (10%) of the 50 mobile phones investigated here were MRSA.•222-nm UV disinfection is safe and effectively reduced MRSA CFUs vitro.•222-nm aerobic bacterial contamination phones. BackgroundMobile be such as methicillin-resistant Staphylococcus aureus (MRSA). The aim this study was to investigate rate on doctors’ hospital-use-only efficacy 222-nm ultraviolet light (UV) disinfection.MethodsWe phones, well reduction counts plastic plates bacteria (AB) before after exposure irradiation.ResultsFive MRSA. Exposure 0.1 mJ/cm2 UVC irradiation for 1.5 2.5 min (9 15 mJ/cm2) achieved mean log10 colony-forming units reductions 2.91 3.95, respectively. 9 (0.1 mW/cm2 minutes) significantly AB (P < .001).ConclusionsThe use resulted effective vitro phone surfaces. Mobile disinfection. We irradiation. Five .001).