Stanimar is staying in the hospital after surgery. He starts to suffer from a fever, diarrhea, and abdominal pain. How did Stanimar most likely contract his nosocomial infection?

Fever, diarrhea, and abdominal pain are common symptoms of an intestinal infection that can spread in hospitals when germs are carried on hands. A health-care worker who fails to disinfect her hands after helping another patient to the bathroom could transfer those germs to Stanimar. The urinary catheter and surgical instruments in choices A and D are more associated with infections at the urinary or surgical site.

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