There’s been incredible progress in the efforts to eradicate polio everywhere. Currently, 5 out of 6 WHO regions are certified free of wild polio.
Despite the progress, there is still a way to go and although it is rare, cases of wild or vaccine-derived strain can become emergent in polio-free regions, including those countries that have not seen cases of polio for decades.
This demonstrates the importance of ensuring that every child is protected through immunisation. A fully immunised population is protected against both vaccine-derived and wild poliovirus.
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World Polio Day 2021 highlights progress and ongoing commitment to end polio everywhere