COVID-19–Associated Hospitalizations Among Adults During SARS-CoV-2 Delta and Omicron Variant Predominance, by Race/Ethnicity and Vaccination Status — COVID-NET, 14 States, July 2021–January 2022

Trends in Disease Severity and Health Care Utilization During the Early Omicron Variant Period Compared with Previous SARS-CoV-2 High Transmission Periods — United States, December 2020–January 2022

(2022) A. Danielle Iuliano et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

COVID-19 Incidence and Death Rates Among Unvaccinated and Fully Vaccinated Adults with and Without Booster Doses During Periods of Delta and Omicron Variant Emergence — 25 U.S. Jurisdictions, April 4–December 25, 2021

(2022) Amelia G. Johnson et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Clinical Trends Among U.S. Adults Hospitalized With COVID-19, March to December 2020

(2021) Shikha Garg et al.   ANNALS OF INTERNAL MEDICINE

Effectiveness of COVID-19 Vaccines in Preventing Hospitalization Among Adults Aged ≥65 Years — COVID-NET, 13 States, February–April 2021

(2021) Heidi L. Moline et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Racial and Ethnic Disparities in Rates of COVID-19–Associated Hospitalization, Intensive Care Unit Admission, and In-Hospital Death in the United States From March 2020 to February 2021

(2021) Anna M. Acosta et al.   JAMA Network Open

Characteristics and Maternal and Birth Outcomes of Hospitalized Pregnant Women with Laboratory-Confirmed COVID-19 — COVID-NET, 13 States, March 1–August 22, 2020

(2020) Miranda J. Delahoy et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT