It's interesting that they're already planning to remove the WPV2 component from vaccines, because it can (very rarely) lead to vaccine-associated paralytic pol

It's interesting that they're already planning to remove the WPV2 component from vaccines, because it can (very rarely) lead to vaccine-associated paralytic polio. "With WPV2 transmission already having been successfully interrupted, the only type 2 poliovirus which still, on very rare occasions, causes paralysis is the type 2 serotype component in trivalent OPV. The continues use of this vaccine component is therefore inconsistent with the goal of eliminating all paralytic polio disease."