Question

how is polio vaccine given now a day and how was it administered 20 years ago​

Answer 1

Two types of vaccines protect against polio, or poliomyelitis. IPV is the only polio vaccine that has been used in the United States since 2000. It is given by shot in the leg or arm, depending on the patient's age.

Answer 2

Answer:

Two types of vaccines protect against polio, or poliomyelitis. IPV is the only polio vaccine that has been used in the United States since 2000. It is given by shot in the leg or arm, depending on the patient's age.

Explanation:

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