Early Estimates of Bivalent mRNA Vaccine Effectiveness in Preventing COVID-19–Associated Emergency Department or Urgent Care Encounters and Hospitalizations Among Immunocompetent Adults — VISION Network, Nine States, September–November 2022

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

(2022) Mark G. Thompson et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Seroprevalence of Infection-Induced SARS-CoV-2 Antibodies — United States, September 2021–February 2022

(2022) Kristie E.N. Clarke et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

A Bivalent Omicron-Containing Booster Vaccine against Covid-19

(2022) Spyros Chalkias et al.   NEW ENGLAND JOURNAL OF MEDICINE

Effectiveness of COVID-19 mRNA Vaccines Against COVID-19–Associated Hospitalizations Among Immunocompromised Adults During SARS-CoV-2 Omicron Predominance — VISION Network, 10 States, December 2021—August 2022

(2022) Amadea Britton et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Effectiveness of Bivalent mRNA Vaccines in Preventing Symptomatic SARS-CoV-2 Infection — Increasing Community Access to Testing Program, United States, September–November 2022

(2022) Ruth Link-Gelles et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Interim Recommendations from the Advisory Committee on Immunization Practices for the Use of Bivalent Booster Doses of COVID-19 Vaccines — United States, October 2022

(2022) Hannah G. Rosenblum et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Early Estimates of Bivalent mRNA Vaccine Effectiveness in Preventing COVID-19–Associated Hospitalization Among Immunocompetent Adults Aged ≥65 Years — IVY Network, 18 States, September 8–November 30, 2022

(2022) Diya Surie et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant

(2021) Jamie Lopez Bernal et al.   NEW ENGLAND JOURNAL OF MEDICINE