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UN says new polio outbreak in Sudan caused by oral vaccineSeptember 2, 2020 -
Africa now free of wild poliovirus, but polio threat remainsAugust 25, 2020 -
COVID-19 measures could disrupt rare polio-like diseaseAugust 4, 2020 -
Pakistan wraps up anti-polio drive amid surge in casesJuly 24, 2020 -
The Latest: S. Korea has smallest rise in cases in 2 monthsJuly 20, 2020 -
China firm uses workers to 'pre-test' vaccine in global raceJuly 16, 2020 -
Pakistan to resume polio campaign as COVID-19 cases declineJuly 14, 2020