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UN says new polio outbreak in Sudan caused by oral vaccineSeptember 2, 2020
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Africa now free of wild poliovirus, but polio threat remainsAugust 25, 2020
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Wilma Rudolph turns in triple gold performance in Rome GamesAugust 4, 2020
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COVID-19 measures could disrupt rare polio-like diseaseAugust 4, 2020