Effectiveness of Monovalent mRNA COVID-19 Vaccination in Preventing COVID-19–Associated Invasive Mechanical Ventilation and Death Among Immunocompetent Adults During the Omicron Variant Period — IVY Network, 19 U.S. States, February 1, 2022–January 31, 2023

Effects of Confounding Bias in Coronavirus Disease 2019 (COVID-19) and Influenza Vaccine Effectiveness Test-Negative Designs Due to Correlated Influenza and COVID-19 Vaccination Behaviors

(2022) Margaret K Doll et al.   CLINICAL INFECTIOUS DISEASES

Assessing vaccine effectiveness against severe COVID-19 disease caused by omicron variant. Report from a meeting of the World Health Organization

(2022) Daniel R. Feikin et al.   VACCINE

Clinical severity of, and effectiveness of mRNA vaccines against, covid-19 from omicron, delta, and alpha SARS-CoV-2 variants in the United States: prospective observational study

(2022) Adam S Lauring et al.   BMJ-British Medical Journal

Effectiveness of mRNA Vaccination in Preventing COVID-19–Associated Invasive Mechanical Ventilation and Death — United States, March 2021–January 2022

(2022) Mark W. Tenforde et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Waning of vaccine effectiveness against moderate and severe covid-19 among adults in the US from the VISION network: test negative, case-control study

(2022) Jill M Ferdinands et al.   BMJ-British Medical Journal

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