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Revised Moderna Vaccine Works Better Against Omicron, Trial Suggests


Moderna released preliminary results on Wednesday on an updated coronavirus vaccine that targets the Omicron variant, calling it “our lead candidate” to serve as a U.S. booster shot in the fall. The firm’s researchers tested a booster dose combining the original vaccine with one that specifically targeted Omicron, the variant that became dominant last winter. They found that among those with no evidence of prior coronavirus infection, the combination produced 1.75 times the level of neutralizing antibodies against Omicron as the existing Moderna vaccine did alone. While those results may seem encouraging on their face, many experts worry that the virus is evolving so quickly that it is outpacing the ability to modify vaccines, at least as long as the United States relies on human clinical trials for results.

The New York Times - June 9, 2022

View the full story here: https://www.nytimes.com/2022/06/08/us/politics/moderna-vaccine-omicron-variant.html