Thứ Ba, 26 tháng 12, 2017

NPR News: Race To Eradicate Guinea Worm And Polio Experienced Roadblocks In 2017

Race To Eradicate Guinea Worm And Polio Experienced Roadblocks In 2017
This year, the world came tantalizingly close to wiping out two human diseases: Guinea worm and polio. But right at the finish line, both eradication projects have run into surprising roadblocks.

Đọc thêm tại NPR
at December 26, 2017 at 04:36AM
Health & Science

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