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wild poliovirus Archives | Premium Times Nigeria
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https://www.livescience.com/africa-free-of-wild-polio.html
Africa declared free of wild poliovirus | Live Science
Aug 25, 2020 - Africa is free of wild poliovirus after decades of vaccination campaigns.
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https://www.newschannel5.com/news/national/africa-now-free-of-wild-poliovirus-but-polio-threat-remains
Africa now free of wild poliovirus, but polio threat remains
Aug 25, 2020 - The declaration on Tuesday will leave Pakistan and neighboring Afghanistan as the only countries thought to still have the wild poliovirus.
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