https://globalnews.ca/news/9436338/covid-booster-xbb-variant-effectiveness-cdc/
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COVID boosters effective against XBB variants: U.S. CDC study - Global News
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1/25/23 at 9:40pm
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Global News
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Reuters
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The new CDC study found that the updated vaccines from Moderna and Pfizer worked similarly against BA.5-related infections and XBB/XBB.1.5-related infections.
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