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
Vaccines | Free Full-Text | The Four Ws of the Fourth Dose COVID-19 Vaccines: Why, Who, When and What
Rollout Strategy for the Pfizer-BioNTech COVID-19 Vaccine in Ontario - Ontario COVID-19 Science Advisory Table
Effectiveness of an inactivated Covid-19 vaccine with homologous and heterologous boosters against Omicron in Brazil | Nature Communications
Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron | NEJM
Boosting immunity to COVID-19 vaccines | Nature Medicine
COVID-19 vaccine breakthrough infections | Science
COVID-19 Vaccine: Booster Dose | Pantai Hospitals - Pantai Malaysia
Effectiveness of Bivalent mRNA Vaccines in Preventing Symptomatic SARS-CoV-2 Infection — Increasing Community Access to Testing Program, United States, September–November 2022 | MMWR
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?
Covid booster doses will be offered to over-40s - BBC News
Booster and Additional Primary Dose COVID-19 Vaccinations Among Adults Aged ≥65 Years — United States, August 13, 2021–November 19, 2021 | MMWR
Cohort study of Covid-19 vaccine effectiveness among healthcare workers in Finland, December 2020 - October 2021 - ScienceDirect
Measuring Vaccination Impact & Coverage
After Three Months, Sinovac Vaccine Only 28% Effective Against ICU Admission - CodeBlue
Early Estimates of Bivalent mRNA Booster Dose Vaccine Effectiveness in Preventing Symptomatic SARS-CoV-2 Infection Attributable to Omicron BA.5– and XBB/XBB.1.5–Related Sublineages Among Immunocompetent Adults — Increasing Community Access to Testing ...
Testing fractional doses of COVID-19 vaccines | PNAS
What We Know So Far About Waning Vaccine Effectiveness - The New York Times
A Bivalent Omicron-Containing Booster Vaccine against Covid-19 | NEJM
Khairy Jamaluddin 🇲🇾🌺 on X: "Real world data from Chile has shown significant increase in vaccine effectiveness after a booster for people who took Sinovac for their primary series. Biggest boost came
Covid booster vaccines effective against severe illness from omicron, CDC says
COVID-19 Vaccines and Booster Shots: Which Combination is Most Effective? - Homage Malaysia
