What We Know So Far About Waning Vaccine Effectiveness - The New York Times
Covid booster doses will be offered to over-40s - BBC News
Single-dose administration and the influence of the timing of the booster dose on immunogenicity and efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine: a pooled analysis of four randomised trials - The Lancet
Frontiers | Association Between Risk Perception and Acceptance for a Booster Dose of COVID-19 Vaccine to Children Among Child Caregivers in China
Effectiveness of a second BNT162b2 booster vaccine against hospitalization and death from COVID-19 in adults aged over 60 years | Nature Medicine
UK vaccine panel says no immediate need for second boosters for elderly
What is the efficacy of the COVID-19 second booster versus the first booster with prior COVID-19 infections?
Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK - The Lancet
Chile Study Shows Mixing Covid-19 Vaccine Boosters Highly Effective - CodeBlue
Effectiveness of a third dose of the BNT162b2 mRNA COVID-19 vaccine for preventing severe outcomes in Israel: an observational study - The Lancet
What We Know About Getting a Second Booster Shot of COVID-19 Vaccines | The Scientist Magazine®
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
Boosting immunity to Omicron | Nature Medicine
Effectiveness of a second BNT162b2 booster vaccine against hospitalization and death from COVID-19 in adults aged over 60 years | Nature Medicine
What We Know So Far About Waning Vaccine Effectiveness - The New York Times
Moderna says its COVID-19 shot 93% effective six months after second dose | Reuters
Cohort study of Covid-19 vaccine effectiveness among healthcare workers in Finland, December 2020 - October 2021 - ScienceDirect
A Bivalent Omicron-Containing Booster Vaccine against Covid-19 | NEJM
COVID-19 vaccine breakthrough infections | Science
Vaccines | Free Full-Text | Efficacy of the Second COVID-19 Vaccine Booster Dose in the Elderly
Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron | NEJM
Second COVID-19 Vaccine Booster Shots: Who Should Get One
I'm a physician over age 50 and I'm not getting my second COVID booster yet. Here's why. | Opinion
Covid booster vaccines effective against severe illness from omicron, CDC says
