What Pfizer, BioNTech, and Moderna Are Doing to Fight the Deadly Delta Variant

You've no doubt heard quite a bit about the coronavirus strain called the delta variant. This variant, first identified in India, is has swept across the world. And it's now the dominant strain in the U.S. 

To be sure, there are reasons to be concerned about the delta variant. It's highly transmissible. Scripps Research Institution's Eric Topol called it "a superspreader strain if there ever was one." There's a possibility that the variant could also cause more severe cases of COVID-19. 

However, there are also reasons to be cautiously optimistic. Here's what Pfizer (NYSE: PFE), BioNTech (NASDAQ: BNTX), and Moderna (NASDAQ: MRNA) are doing to fight the deadly delta variant.

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Source Fool.com