Final answer:
Nosocomial diseases are infections contracted by patients while in the hospital. They can be caused by bacteria, viruses, or fungi and are a major concern in healthcare settings.
Step-by-step explanation:
The correct answer is c. nosocomial. Nosocomial diseases are infections that are contracted by a patient while in the hospital. These infections can be caused by bacteria, viruses, or fungi, and they can be transmitted through contact with contaminated surfaces, medical equipment, or healthcare workers who may not practice proper hygiene.
One example of a nosocomial infection is Methicillin-resistant Staphylococcus aureus (MRSA). This strain of bacteria is resistant to many commonly used antibiotics and can cause severe infections in healthcare settings. It is a major concern because it can spread rapidly and is difficult to treat.