NIH director Francis Collins at a Senate Appropriations subcommittee hearing for Operation Warp Speed (Graeme Jennings/Pool via AP Images)
Covid-19 roundup: AstraZeneca signs 400M vaccine supply deal with EU; Sinopharm reports positive Phase I/II data for vaccine candidate
Amid talks with multiple players, the European Commission has reached its first vaccine supply deal with AstraZeneca, securing 400 million …
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