Thứ Sáu, 30 tháng 10, 2020

NPR News: The Campaign To Wipe Out Polio Was Going Really Well ... Until It Wasn't

The Campaign To Wipe Out Polio Was Going Really Well ... Until It Wasn't
It looked as if polio would be the second human disease to be eliminated — after smallpox. But "2020 has been a terrible year," says Michel Zaffran, head of the Global Polio Eradication Initiative.

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October 30, 2020 at 11:44PM
Children's Health

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