How to think about boosters in light of this week's Pfizer and Moderna news - CNN

How to think about boosters in light of this week's Pfizer and Moderna news - CNN
Pfizer and BioNTech announced Tuesday that they're beginning a clinical trial for an Omicron-specific Covid-19 vaccine, and Moderna revealed Wednesday that it has entered Phase 2 of its own trial of a vaccine that targets the variant, which is by far the domi…
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