A member asked:

How immune is my child who is 4 years old after taking four doses of ipv ? is it 100 percent ?

A doctor has provided 1 answer

Almost but close!: 99% of individuals receiving polio vaccine are immune after just 3 doses. It is highly effective in producing immunity to poliovirus & protection against paralytic poliomyelitis.

Answered 5/29/2017

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