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: Social & Preventive Medicine
[{'content': 'Vaccine for meningococcal meningitis should be routinely given to - \nSelect and explain. \nA. Laboratory workers, B. Young adolescents, C. 4-8 years old children, D. Elderly population', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Meningococcal Vaccine Recommendations:\n\nRoutinely:\n\n– All adolescents 11-12 years age (1st dose at 11-12 years age, followed by Booster dose at 16 years age)\n\nOther groups:\n\n– Adolescents 13-18 years\n– Young people 19-21 years\n– 2 years and above (Splenectomized/ Chronic diseases/Lab workers/Travelers to endemic areas)', 'role': 'assistant'}]