Do Vaccines and Boosters Protect Against Omicron?

Published on: January 13, 2022.

About the Data Insights

More than 900,000 Americans have died from COVID-19, and while new cases have declined in the past week, deaths increased. Even though omicron cases are often milder than earlier variants and there is less risk of being admitted to the intensive care unit than during previous waves, the high volume of hospital admissions is straining the health care system. As the world continues to grapple with COVID-19, questions remain about the future of the virus.

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  • Vaccination Status & Hospitalization: Danza P, Koo TH, Haddix M, et al. SARS-CoV-2 Infection and Hospitalization Among Adults Aged ≥18 Years, by Vaccination Status, Before and During SARS-CoV-2 B.1.1.529 (Omicron) Variant Predominance — MMWR Morb Mortal Wkly Rep 2022;71:177–181.

  • Boosters Effectiveness: Thompson MG, Natarajan K, Irving SA, et al. Effectiveness of a Third Dose of mRNA Vaccines Against COVID-19–Associated Emergency Department and Urgent Care Encounters and Hospitalizations Among Adults During Periods of Delta and Omicron Variant Predominance — VISION Network, 10 States, August 2021–January 2022. MMWR Morb Mortal Wkly Rep 2022;71:139–145.

  • Data on BA.2: Schuster-Bruce, Dr. Catherine. “Vaccines Could Provide Strong Protection against the Fast-Spreading Omicron Subvariant BA.2, One Chart Shows.” Business Insider, 3 Feb. 2022.


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