A COVID-19 bivalent vaccine booster provides additional protection against COVID-19–associated emergency department/urgent care encounters and hospitalizations compared with previous vaccination with two or more monovalent vaccine doses, according to studies in adults and older adults released today by the Centers for Disease Control and Prevention.
 
“To maximize protection against severe COVID-19 this winter season, all eligible persons, especially adults aged ≥65 years, should receive a bivalent booster dose and consider additional prevention strategies, including masking in indoor public spaces,” the study in older adults concludes.

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