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Doubts greet $1.2 billion bet by United States on a coronavirus vaccine by October

Doubts greet $1.2 billion bet by United States on a coronavirus vaccine by October

on Saturday
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http://www.sciencemag.org/news/2020/05/doubts-greet-12-billion-bet-united-states-coronavirus-vaccine-october

A clinical trial of the Oxford vaccine, now manufactured by AstraZeneca, began in the United Kingdom last month.

Science’s COVID-19 reporting is supported by the Pulitzer Center.