Poliovirus Vaccine Inactivated, Type 2
Poliovirus Vaccine Inactivated, Type 2 (Mef-1) is a vaccine that protects against type 2 poliovirus infection. It contains inactivated (killed) poliovirus and is used in routine immunization programs to prevent poliomyelitis, particularly in infants and children.
An inactivated vaccine providing protection against type 2 poliovirus, used primarily in childhood immunization schedules.
Key facts at a glance
- RxNorm
- 763098
- Generic
- Poliovirus Vaccine Inactivated, Type 2 (Mef-1)
- Class
- unclassified
- Brands
- Quadracel, Vaxelis, Ipol, PEDIARIX, Pentacel, Kinrix
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- prefilled syringe, injection, suspension
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Prevention of poliomyelitis caused by type 2 poliovirus. It is part of routine childhood vaccination programs in many countries and is used for both primary vaccination series and booster doses. May also be used for catch-up immunization in unvaccinated or under-vaccinated individuals.
The vaccine contains inactivated type 2 poliovirus (Mef-1 strain) that stimulates the immune system to produce protective antibodies against the virus. Upon exposure to actual poliovirus, these antibodies help prevent infection and disease development.
Administered by intramuscular or subcutaneous injection. As an inactivated vaccine, it cannot cause vaccine-associated paralytic poliomyelitis. Part of combination vaccines in many national immunization schedules. Routine type 2 containing vaccines continue globally to maintain population immunity following the declaration of wild type 2 eradication.
Official drug label
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 29, 2026. · Read our editorial policy