How many doses are required for the Polio vaccine?

The correct number of doses required for the Polio vaccine is four. The recommended schedule includes a series of doses typically administered at specific ages to ensure optimal immunity against poliomyelitis. The vaccination usually begins in infancy, with doses often given at 2 months, 4 months, and a booster dose at 6-18 months. The fourth dose is usually administered between 4 to 6 years of age. This multi-dose schedule is crucial for building and maintaining immunity against the disease, especially since polio can have severe consequences, and it is necessary to provide comprehensive protection throughout early childhood.

While some vaccines may require fewer doses, the four-dose schedule for the Polio vaccine is designed to provide robust and enduring immunity, aligning with public health guidelines to prevent outbreaks of this contagious viral infection.