This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'The drug used by health workers in the management of acute respiratory infection - \nSelect and explain. \nA. Cotrimoxazole, B. Chloramphenicol, C. Benzyl penicillin, D. Gentamycin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: *cotrimoxazole is the drug of choice of treatment of pneumonia *efficacy of cotrimoxazole is to be similiar to ampicillin and procaine penicillin &cure rates are up to 95% *less expensive with little side effects *children with severe pneumonia should be treated with IM benzyl penicillin,ampicillin or chloremphenicol *in very severe pneumonia,chloremphenicol IM is the drug of choice if condition worsens,IM cloxacillin & gentamycin is given', 'role': 'assistant'}]