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Vaccine efficacy against severe COVID-19 in relation to delta variant (B.1.617.2) and time since second dose in patients in Scotland (REACT-SCOT): a case-control study - The Lancet Respiratory Medicine
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Vaccine efficacy and booster dose combinations among 18.9 million adults in the early phase of Omicron
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Effectiveness of Bivalent mRNA Vaccines in Preventing Symptomatic SARS-CoV-2 Infection — Increasing Community Access to Testing Program, United States, September–November 2022 | MMWR
Understanding and Communicating about COVID-19 Vaccine Efficacy, Effectiveness, and Equity | Understanding and Communicating about COVID-19 Vaccine Efficacy, Effectiveness, and Equity |The National Academies Press
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