La course aux vaccins, une nouvelle «Guerre f...
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The United States has never undertaken a vaccination campaign of the scale and speed of the Covid-19 program. Despite a few glitches, the country appears to be on track to offer shots to all adults who want one by May 1. We look at the ups and downs in the American vacci ...
Scientists are racing to make a vaccine for the coronavirus, collaborating across borders in what is usually a secretive and competitive field. But their cooperation has been complicated by national leaders trying to buy first claim on any breakthrough. Today, we explore how t ...