Unfortunately, the whole polio eradication thing is less of an clear-cut success story than the headlines made it seem - they only eradicated wild-type polio, there are still major outbreaks in Africa of vaccine-derived polioviruses that have lost the mutations which made them safe and started spreading in the community and paralyzing people, those have only been getting more widespread last I heard and there doesn't seem to be any clear route to a solution. Can't imagine that Covid has helped much with that either, given the disruption to vaccination programs worldwide - vaccine-derived poliovirus outbreaks thrive wherever vaccination is disrupted or incomplete, or there's a border between vaccinated and non-vaccinated regions.

The original plan that the WHO and the rest of the global health community came up to deal with this also seems like total magical thinking to me - basically, everywhere would drop the type 2 poliovirus component (which corresponded to a virus whose wild type had been eliminated) from their live vaccines at once, which would leave none to turn into vaccine-derived poliovirus and type 2 woud just go away. It didn't work that way. I can't fathom why it even should. Nonetheless, there were lots of fancy documents and presentations from the WHO and other such organisations explaining this strategy very hopefully. The current ones don't have the same level of hope.