In this Nov. 30, 2020, file photo, the logo of French drugmaker Sanofi is pictured at the company's headquarters, in Paris. Sanofi and GlaxoSmithKline's potential COVID-19 vaccine triggered strong immune responses in all adult age groups in preliminary trials, boosting optimism that the shot may join the fight against the pandemic by the end of this year. (AP Photo/Thibault Camus, File)
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