Name the new polio vaccine launched by the Department of Health and Family Welfare in Chandigarh replacing the existing trivalent Oral Polio Vaccine (tOPV) which was being used for over three decades?
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Name the new polio vaccine launched by the Department of Health and Family Welfare in Chandigarh replacing the existing trivalent Oral Polio Vaccine (tOPV) which was being used for over three decades?
