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
Por qué la tercera dosis de la vacuna contra la COVID-19 es fundamental contra Ómicron | National Geographic
Covid booster vaccines effective against severe illness from omicron, CDC says
Effectiveness of BNT162b2 Vaccine against Omicron Variant in South Africa | NEJM
UK Study: mRNA Booster 88% Effective Against Omicron Hospitalisation - CodeBlue
Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron | NEJM
No Omicron immunity without booster, study finds – Harvard Gazette
Omicron – NIH Director's Blog
Effectiveness of primary series and booster vaccination against SARS-CoV-2 infection and hospitalisation among adolescents aged 12–17 years in Singapore: a national cohort study - The Lancet Infectious Diseases
Boosting immunity to Omicron | Nature Medicine
Effectiveness of mRNA-1273 against SARS-CoV-2 Omicron and Delta variants | Nature Medicine
Severity of omicron variant of concern and effectiveness of vaccine boosters against symptomatic disease in Scotland | The University of Edinburgh
Moderna vaccine no match for omicron except with booster, study finds : Shots - Health News : NPR
Covid booster vaccines effective against severe illness from omicron, CDC says
mRNA-based COVID-19 vaccine boosters induce neutralizing immunity against SARS-CoV-2 Omicron variant - ScienceDirect
J&J booster 85% effective against Omicron hospitalisation, South Africa says | Reuters
Why do Covid boosters offer greater protection against Omicron?
Vaccines | Free Full-Text | Is Booster Dose Strategy Sufficient for Omicron Variant of SARS-CoV-2?
Significant increase' in protection vs Omicron from mRNA boosters, study says | Reuters
Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar | NEJM
A Bivalent Omicron-Containing Booster Vaccine against Covid-19 | NEJM
Three mRNA COVID-19 vaccine doses very effective in protecting against emergency department visits and hospitalizations associated with Omicron and Delta variants
Booster needed to neutralize the fast-spreading variant | World Economic Forum
Effectiveness of ChAdOx1-S COVID-19 booster vaccination against the Omicron and Delta variants in England | Nature Communications
