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COVID-19 Incidence and Mortality by Receipt of Bivalent Booster Doses and Time Since Vaccination

Weekly / February 10, 2023 / 72(6);145–152 Summary What is already known about this topic? COVID-19 vaccine effectiveness decreased with waning of vaccine-derived immunity and emerging Omicron sublineages. An updated (bivalent) booster dose enhances protection against...

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