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': 'Management of non Immunised diphtheria contacts include all except - \nSelect and explain. \nA. Prophylactic pencillin, B. Single dose of Toxoid, C. Daily throat examinations, D. Throat swab culture', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Non immunised close contact should receive prophylactic Penicillin or erythromycin. They should be given1000- 2000 units of antitoxin and actively immunised against diphtheria. The bacteriological surveillance should be continued for several weeks by repeated swabbing at weekly intervals Reference; Park&;s Textbook of preventive and social medicine, 24th edition.Pg no. 171', 'role': 'assistant'}]