COVID-19 vaccine effectiveness against the omicron (BA.2) variant in England - The Lancet Infectious Diseases
Effectiveness of ChAdOx1-S COVID-19 booster vaccination against the Omicron and Delta variants in England | Nature Communications
Covid booster vaccines effective against severe illness from omicron, CDC says
Vaccines | Free Full-Text | Is Booster Dose Strategy Sufficient for Omicron Variant of SARS-CoV-2?
Omicron – NIH Director's Blog
Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar | NEJM
Boosters vital to mitigate impact of Omicron, but may lose some effectiveness | Imperial News | Imperial College London
A Bivalent Omicron-Containing Booster Vaccine against Covid-19 | NEJM
Omicron: Three vaccine doses key for protection against variant - BBC News
COVID-19 Booster Effectiveness Remained High During Omicron Surge > TRICARE Newsroom > Market News
No Omicron immunity without booster, study finds – Harvard Gazette
Severity of omicron variant of concern and effectiveness of vaccine boosters against symptomatic disease in Scotland | The University of Edinburgh
Covid booster shots up to 75% effective against Omicron, UK study finds
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 | MMWR
Three mRNA COVID-19 vaccine doses very effective in protecting against emergency department visits and hospitalizations associated with Omicron and Delta variants
Omicron – NIH Director's Blog
Boosting immunity to Omicron | Nature Medicine
Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant | NEJM
Does the Booster Protect Against Omicron?
Effectiveness of a COVID-19 Additional Primary or Booster Vaccine Dose in Preventing SARS-CoV-2 Infection Among Nursing Home Residents During Widespread Circulation of the Omicron Variant — United States, February 14–March 27, 2022 | MMWR
Effectiveness of Bivalent Boosters against Severe Omicron Infection | NEJM
COVID-19 vaccine surveillance report: week 2
Covid booster 88% effective against hospital treatment with Omicron - BBC News
Significant increase' in protection vs Omicron from mRNA boosters, study says | Reuters
Effectiveness of an inactivated Covid-19 vaccine with homologous and heterologous boosters against Omicron in Brazil | Nature Communications
