After how many hours of hospital admission does nosocomial infection occur?
24 hours
36 hours
48 hours
72 hours
Nosocomial infections can be defined as those occurring within 48 hours of hospital admission, 3 days of discharge or 30 days of an operation. They affect 1 in 10 patients admitted to hospital.  Nosocomial comes from the Greek word nosokomeion meaning hospital (nosos = disease, komeo = to take care of ). This type of infection is also known as a hospital-acquired infection.