COVID-19

What we know about Moderna's COVID-19 vaccine candidate — and what we don't

The drug company Moderna has released encouraging data from research on its COVID-19 vaccine candidate. The research has not yet been published in a peer-reviewed medical journal, but it is nonetheless raising hopes. Noubar Afeyan is a co-founder and chairman of Moderna and the CEO of Flagship Pioneering, a venture capital firm that helped launch Moderna. He joins Judy Woodruff to discuss.

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