This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NPEP, NHM, Subject name: Social & Preventive Medicine
[{'content': 'Pulse Polio Immunization is administration of OPV to:- \nSelect and explain. \nA. All children between 0-5 years of age on a single day, irrespective of their previous immunization status, B. Children in the age group of 0-1 year only who have not been immunized earlier, C. Children in the age group of 12-24 months only, as the booster dose, D. All children between 0-5 years of age, whenever there is an outbreak of poliomyelitis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Pulse polio immunization programme in India:- Launched in India: 1995-96. First PPI targeted children <3 years age. Later on WHO recommended age group be 0-5 years. Meaning of 'pulse': sudden, simultaneous mass administration of oral polio vaccine on a single day to 'all children of 0-5 years age'. Irrespective of their previous immunization status. PPI replaces wild virus with vaccine virus from the community. PPI is over and above routine immunization.", 'role': 'assistant'}]