Moderna Vaccine Efficacy Takes a Hit From Omicron
UPDATE: Moderna Announces Booster FindingsA booster shot of Moderna’s COVID-19 vaccine increases the level of antibodies that can protect against Omicron, the company said in a December 20thstatement.The currently authorized booster dose of 50 micrograms boosted virus-fighting antibody levels 37-fold against Omicron. A full 100-microgram dose of the same vaccine—the same dose given in the primary immunization—stimulated an 83-fold increase in antibody levels.Researchers sampled blood from 20 booster recipients who received a 100-microgram booster and 20 who were boosted with a 50-microgram dose....