All the following are true about nosocomial infections except -

Ans. is 'd' i.e., May be already present at the time of admission "The term Nosocomial infection is applied to infection developing in hospitalized patients". These infections neither present, nor in incubation, at the time of patient's admission" - Ananthanarayan 7th/e p. 634. Such infections may become evident during their stay in the hospital or sometimes only after their discharge.