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
Vaccines | Free Full-Text | COVID-19 Vaccine Booster Strategies for Omicron SARS-CoV-2 Variant: Effectiveness and Future Prospects
Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron | NEJM
Pfizer says its COVID shots are 73 percent effective in children under 5 | PBS NewsHour
Severity of omicron variant of concern and effectiveness of vaccine boosters against symptomatic disease in Scotland | The University of Edinburgh
Eric Topol on X: "First data on booster vaccine effectiveness vs Omicron (581 cases): drop in protection vs symptomatic infection by 2 doses (AZ ->0, Pfizer-> <40%) restored to ~75% with 3rd
Booster needed to neutralize the fast-spreading variant | World Economic Forum
Effectiveness of Bivalent mRNA Vaccines in Preventing Symptomatic SARS-CoV-2 Infection — Increasing Community Access to Testing Program, United States, September–November 2022 | MMWR
Updated COVID-19 booster targets subvariants responsible for 98% of cases today : Oregon Health News Blog
How effective are COVID-19 vaccines against omicron? | PBS NewsHour
Effectiveness of Covid-19 Vaccines against the Omicron Variant | NEJM
A Bivalent Omicron-Containing Booster Vaccine against Covid-19 | NEJM
Eric Topol on X: "The decline of vaccine effectiveness vs Omicron. Simplified (no 95% CI) summary for Pfizer vaccine vs Delta, + booster, and vs Omicron, + booster (early @UKHSA data) vs
Covid booster vaccines effective against severe illness from omicron, CDC says
Omicron: Three vaccine doses key for protection against variant - BBC News
Potentially breaking the COVID-19 stalemate with variant booster, bivalent or polyvalent vaccines
Vaccines appear weak at blocking Omicron, better against severe disease | Reuters
Effectiveness of an inactivated Covid-19 vaccine with homologous and heterologous boosters against Omicron in Brazil | Nature Communications
Covid vaccine protection was much weaker against omicron, data shows - Washington Post
Severity of omicron variant of concern and effectiveness of vaccine boosters against symptomatic disease in Scotland (EAVE II): a national cohort study with nested test-negative design - The Lancet Infectious Diseases
How booster shots can help protect you from Omicron | National Geographic
Effectiveness of BNT162b2 Vaccine against Omicron Variant in South Africa | NEJM
Bivalent Booster Is Effective, First Real-World Data Show | Time
FDA vaccine advisers 'disappointed' and 'angry' that early data about new Covid-19 booster shot wasn't presented for review last year | CNN
