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Omicron Variant Shows Serious Decrease In Neutralizing Activity, Lab Studies Show

Purple pipette doing sample work in a lab

Laboratory studies of the omicron variant of COVID-19 from multiple sources reveal a dramatic decrease in neutralizing activity from prior infection with earlier variants and the available vaccines. The results provide a challenging prospect for the future of the pandemic if the variant becomes dominant, and strongly encourage a booster dose for all adults, regardless of health conditions.