Nosocomial infection is defined as an infection acquired in which setting?

• A. Infections acquired in the community
• B. Infections contracted in a healthcare setting
• C. Infections transmitted by animals
• D. Infections caused by fungi only

Answer: (B)

Nosocomial infection means an infection that a patient contracts while receiving care in a healthcare setting, such as a hospital or clinic. It is typically not present or incubating at the time of admission and develops after the patient has been admitted, often after the first couple of days. This type of infection can be caused by a wide range of pathogens, not limited to fungi, and includes examples like catheter-associated urinary tract infections, ventilator-associated pneumonia, and MRSA skin infections. The other options describe infections originating outside the healthcare setting (community-acquired), those transmitted by animals, or infections caused solely by fungi, which do not define a nosocomial infection.