Correction | Published: 14 June 2024

Expression of concern: Excess mortality across countries in the western world since the COVID-19 pandemic: ‘Our World in Data’ estimates of January 2020 to December 2022

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The integrity team and editors are investigating issues raised regarding the quality and messaging of this work. The Princess Máxima Centre, which is listed as the affiliation of three of the four authors, is also investigating the scientific quality of this study.1 The integrity team has contacted the institution regarding their investigation.

Readers should also be alerted to misreporting and misunderstanding of the work. It has been claimed that the work implies a direct causal link between COVID-19 vaccination and mortality. This study does not establish any such link. The researchers looked only at trends in excess mortality over time, not its causes. The research does not support the claim that vaccines are a major contributory factor to excess deaths since the start of the pandemic. Vaccines have, in fact, been instrumental in reducing the severe illness and death associated with COVID-19 infection.