Nosocomial infections are acquired at various social events. are acquired while in the hospital. occur because of a susceptible population and presence of disease causing organisms. are acquired without any human contact. are acquired while in the hospital AND occur because of a susceptible population and presence of disease causing organisms. Solution These are mainly hospital acquired infections caused by viral fungal or bacterial pathogens. Main types are blood stream infections, urinary tract infections, surgical site infections. Means the last option is most suitable for this ques.. i.e. Acquired while in hospital and occur becoz of a susceptible population and presence of disease causing organism.