In many areas, there are high chances of kids not receiving the “zero polio” dose at the hospital immediately after birth. “Even 1 per cent of children missing the vaccination in Uttar Pradesh translates into more than 1,20,000 possible victims,” says Dr Thacker. “The effectiveness of the Oral Polio Vaccine is not very high in affected areas compared to the other parts of the country due to its high transmission power. But, in affected areas, around 15 doses are required to provide sufficient immunity,” adds Dr Choudhury.