$Pfizer(PFE)$ European Medicines Agency (EMA) reportedly says existing vaccines appear to be holding up against the variants. It is too early to tell if the vaccines will need to be tweaked at some point in the future. I believe PFE said they are studying what changes they might need to make. PFE is one of the few companies with the knowledge, skill, and resources to successfully do it.Just buy and hold!

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