BACKGROUND :- Nosocomial infections (NIs), also known as a hospitalacquiredinfection, are defined as infections which areacquired after 48 h of patient admission. Such infectionsare neither present nor incubating prior to a patient’sadmission to a given hospital. NIs represent a universallyserious health problem and a major concern forthe safety of both patients and the health care providers[1–4]. Although the incidence rate for nosocomial infection vary from country to country, at any given time,almost seven patients from developed countries to ten patients from developing countries out of each100patients admitted to hospitals gain at least one kind of nosocomial infections