While Moderna's two-dose COVID vaccine appears to be less effective against Omicron, a booster shot appears to increase antibodies that are highly effective at blocking the variant.
Based on the results, Montefiori said a new vaccine that specifically targets the Omicron variant won’t be needed, NPR reported.
Scientists are also testing the Omicron variant against the Johnson & Johnson vaccine alone and with a Pfizer booster, NPR reported. Results are expected early next week.
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