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The first COVID vaccine to be rolled out in the U.S., the one from Pfizer and BioNTech, is an mRNA vaccine. The second one probably will be too: Moderna's vaccine is up for consideration this week. We've never had an mRNA vaccine in common use before, so you're not alone if you're wondering what the hell thisâ¦
Source : https://vitals.lifehacker.com/how-mrna-vaccines-work-1845895792
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