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': 'The pioneer in concept of specific protection by vaccine was ? \nSelect and explain. \nA. Chinese, B. Robe koch, C. Ambroise parre, D. Louis Pasteur', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., ChineseThe Chinese were early poineers of immunizations. They practiced voriolation to prevent small pox.Similar practice is also known to be prevalent in the early Ayurveda period, which was quoted by Edward Jenner to the Royal society to get approval for first proposed small pox vaccine.", 'role': 'assistant'}]