A new mRNA vaccine against the flu has proven itself more effective than existing vaccines in a new clinical trial. The Pfizer-developed vaccine was found to be 34.5 percent more effective than current vaccines at preventing illness caused by influenza A in a trial of over 18,000 people. Though the new vaccine was associated with more side effects, severe adverse events were uncommon regardless of which vaccine people received. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

mRNA vaccines: A refresher

mRNA vaccines came to prominence during the COVID-19 pandemic, but part of the reason the Pfizer/BioNTech and Moderna shots were developed so quickly is that this technology had already been under investigation for some time. Its creato

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