Since the type 2 wild polio hasn't been reported anywhere since 1999, all OPV-using countries switched to the bivalent oral polio vaccine, which doesn't include the type 2 component, in April 2016.

Children given inactivated polio vaccine (IPV) at least 6 months after the oral poliovirus vaccine (OPV) series develop better immunity, according to a report published online July 11 in the Lancet.

Two forms of the polio vaccine are available: injected inactivated polio vaccine (IPV or Salk vaccine), introduced in 1955 and oral live-attenuated polio vaccine (OPV or Sabin vaccine), introduced in ...

PharmaJet has been awarded a UNICEF tender to support WHO and Global Polio Eradication Initiative (GPEI) partners. This is the first large-scale implementation of intradermal (ID) polio immunization ...