Does This Shocking CDC Statement Mean Trouble for Pfizer and Moderna?

Does This Shocking CDC Statement Mean Trouble for Pfizer and Moderna?

Coronavirus vaccine leaders Pfizer (NYSE: PFE) and Moderna (NASDAQ: MRNA) announced earlier this year that they'd launched clinical trials of booster shot candidates -- and you could almost hear the world's collective sigh of relief. As coronavirus variants gained ground, everyone's big worry was staying ahead of them. Moderna has said it aims to bring a booster to market this fall.