martes, 28 de julio de 2020

Experimental COVID-19 vaccine is put to its biggest test | World News,The Indian Express

Experimental COVID-19 vaccine is put to its biggest test | World News,The Indian Express

Experimental COVID-19 vaccine is put to its biggest test

Experimental COVID-19 vaccine is put to its biggest test



It normally takes years to create a vaccine from scratch, but scientists are setting speed records this time, spurred by knowledge that vaccination is the world’s best hope against the pandemic.

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