What are the two types of polio vaccine?
• IPV (Inactivated Polio Vaccine) is an injection supplied in a single dose and is the recommended polio vaccine for almost everyone in the U.S. today. IPV was licensed in November 1987, and first became available in 1988. • OPV (Oral Polio Vaccine) is a live vaccine which is drops that are swallowed. Use of OPV was discontinued in the U.S. in 2000. 2. What is oral poliovirus vaccine (OPV)? OPV is a live, oral polio vaccine which is drops that are swallowed. Until recently, OPV was recommended for most children in the United States. But it is no longer recommended except in limited circumstances. OPV helped rid the U.S. of polio, and it is still used in many parts of the world. Both IPV and OPV give immunity to polio, but OPV is better at keeping the disease from spreading to other people. 3. What is monovalent oral poliovirus vaccine (mOPV) type 1? Three types of wild poliovirus, known as type 1, type 2, and type 3, cause poliomyelitis. Monovalent oral polio vaccine (mOPV) provides an
