What is the advantage of giving frequent doses of polio drops to children?
Much research has gone into the study of the effectiveness of polio vaccine in Pakistan and it is evident that 3 doses of the oral vaccine do not completely protect all children from the disease. Only 70-80% of children will be protected after the third dose. This means that to be safe, children should receive every single dose offered to them. In many children it requires 5 or 6 doses or even more to provide complete protection.
