Covid vaccine protection was much weaker against omicron, data shows - Washington Post
Why do Covid boosters offer greater protection against Omicron?
COVID-19 vaccine waning and effectiveness and side-effects of boosters: a prospective community study from the ZOE COVID Study - The Lancet Infectious Diseases
Vaccines appear weak at blocking Omicron, better against severe disease | Reuters
Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron | NEJM
How booster shots can help protect you from Omicron | National Geographic
Effectiveness of BNT162b2 Vaccine against Omicron Variant in South Africa | NEJM
Real-world COVID-19 vaccine effectiveness against the Omicron BA.2 variant in a SARS-CoV-2 infection-naive population | Nature Medicine
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
Updated COVID-19 booster targets subvariants responsible for 98% of cases today : Oregon Health News Blog
Pfizer says its COVID shots are 73 percent effective in children under 5 | PBS NewsHour
Boosting immunity to Omicron | Nature Medicine
COVID-19 vaccine effectiveness against the omicron (BA.2) variant in England - The Lancet Infectious Diseases
Pfizer-BioNTech Covid-19 shot loses power against Omicron variant
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
Pfizer/BioNTech vaccine – NIH Director's Blog
Effectiveness of Covid-19 Vaccines against the Omicron Variant | NEJM
Vaccines | Free Full-Text | Vaccine Confidence and Uptake of the Omicron Bivalent Booster in Tennessee: Implications for Vulnerable Populations
Severity of omicron variant of concern and effectiveness of vaccine boosters against symptomatic disease in Scotland | The University of Edinburgh
Vaccines | Free Full-Text | COVID-19 Vaccine Booster Strategies for Omicron SARS-CoV-2 Variant: Effectiveness and Future Prospects
Vaccines and Boosters Offer Best Defense Against Omicron
A Bivalent Omicron-Containing Booster Vaccine against Covid-19 | NEJM
