This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': 'A person gets infected in a hospital and clinical manifestation appear after he is discharged this is called - \nSelect and explain. \nA. Nosocomial infection, B. Opportunistic infection, C. Epizootic infection, D. Physician induced', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The term hospital infection, hospital - acquired infection or nosocomial infection are applied to infections developing in hospitalized patients, not present or in incubation at the time of their admission.\nSuch infections may become evident during their stay in hospital or, sometimes, only after their discharge.', 'role': 'assistant'}]