COVID-19 vaccine efficacy and effectiveness—the elephant (not) in the room

• Piero Olliaro,
• Els Torreele,
• Michel Vaillant

Affiliations

Piero Olliaro

Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK

Els Torreele

Institute for Innovation and Public Purpose, University College London, London, UK

Michel Vaillant

Competence Center for Methodology and Statistics, Luxembourg Institute of Health, Strassen, Luxemburg