The variants could turn one-time sales into annual revenue.Moderna (NASDAQ: MRNA) says it is developing vaccines against the coronavirus variants "out of an abundance of caution." But as Fool.com contributors Brian Orelli and Keith Speights discuss in this video from Motley Fool Live, recorded on ...

https://www.fool.com/investing/2021/05/10/are-coronavirus-vaccine-boosters-inevitable/?source=iedfolrf0000001

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