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 which should not be given to an elderly man is \nSelect and explain. \nA. Measles vaccine, B. H. influenzae vaccine, C. TT vaccine, D. Pneumococcal vaccine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: CDC GUIDELINES FOR IMMUNIZATION OF OLDER PEOPLE\n• Influenza intramuscular inactivated vaccine (live intranasal vaccine is contraindicated)\n• Pneumococcal vaccine once\n• Tetanus-diphtheria toxoid (Td) booster every 10 years\n• In selected patients aged 60 years or more\n– Herpes zoster (shingles)\n– Hepatitis A\n– Hepatitis B\n– Meningococcal disease\n– Varicella\n– MMR\n– Yellow fever vaccine (for travellers)', 'role': 'assistant'}]