This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'All of the following cause a False positive Mantoux test except \nSelect and explain. \nA. HIV / AIDS, B. Prior BCG vaccine, C. Degraded tuberculin, D. Faulty technique of injection', 'role': 'user'}, {'content': 'Answer: A \nExplanation: FALSE NEGATIVE MANTOUX Malnutrition HIV / AIDS High fever Measles and chickenpox Use of immunosuppressants / antiallergic drugs', 'role': 'assistant'}]