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What is oral poliovirus vaccine (OPV)?

April 26, 2017OPV oral poliovirus vaccine

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What is oral poliovirus vaccine (OPV)?

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10 Posted

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 increased “type-specific” immunity to poliovirus compared to trivalent oral polio vaccine (tOPV), which includes three types of poliovirus in a live-attenuated form that gives protection against all three types of wild polioviruses. Where mOPV type 1 only provides immunity to poliovirus type 1 only, it provides better protection against type 1 than tOPV does. 4. What are the risks from OPV?