sábado, 25 de agosto de 2018

Why polio remains surprisingly hard to eradicate | Genetic Literacy Project

Why polio remains surprisingly hard to eradicate | Genetic Literacy Project

Genetic Literacy Project

Why polio remains surprisingly hard to eradicate

 |  | August 23, 2018
7-24-2018 vbk-31-polio vaccination
Image credit: UNICEF

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