mRNA Vaccines Authorized
The first mRNA vaccines were authorized for emergency use against COVID-19, validating decades of overlooked research and launching a new era in medicine.
On December 11, 2020, the U.S. FDA granted emergency use authorization to the Pfizer-BioNTech COVID-19 vaccine — the first mRNA vaccine ever authorized for human use. Moderna's mRNA vaccine followed a week later. The technology, pioneered by researchers including Katalin Kariko and Drew Weissman (who would win the 2023 Nobel Prize), uses synthetic messenger RNA to instruct cells to produce a harmless piece of the virus's spike protein, training the immune system without using live or inactivated virus. The vaccines demonstrated approximately 95% efficacy in clinical trials — a stunning result developed in under 11 months. The mRNA platform's flexibility — scientists could design a vaccine within days of receiving the virus's genetic sequence — promises to revolutionize the treatment of cancer, infectious diseases, and genetic disorders.
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