This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: general microbiology, Subject name: Microbiology
[{'content': 'Contact isolation is done for \nSelect and explain. \nA. Typhoid, B. Mumps, C. MRSA, D. Diphtheria', 'role': 'user'}, {'content': 'Answer: D \nExplanation: * Strict isolation is must for patient diagnosed with diphtheria. * Even when clinically suspected, patient must be isolated. * A staff who has known immunisation history should nurse the patient. Ref:- Greenwood medical microbiology 18th ed; pg num:- 202', 'role': 'assistant'}]