reports on the prevalence of HAIs and the evolution of microbial resistance to antibiotics and disinfectants it is clear and sustainable to address contaminated surfaces in hospital settings are of great interest. Besides measures that deal with person-to-person transmission of pathogens contaminated environmental surfaces provide an important potential source for transmission of many healthcare-associated pathogens due to their persistence on such inanimate surfaces . This highlights the importance of cleaning procedures aimed to control the load of pathogenic bacteria that reside on hospital surfaces and as a consequence of HAIs,as indicated by considerable evidence about the benefits of hospital cleanliness towards reducing HAIs.