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: Pediatrics
[{'content': 'Antibodies to one of the following infection is not transmitted to child - \nSelect and explain. \nA. Measles, B. Peusis, C. Diphtheria, D. Polio', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Peussis Protective Antibodies against peussis doe not corss plecenta. o So, early immunization is desired.", 'role': 'assistant'}]