[HTML][HTML] Global excess mortality during COVID-19 pandemic: A systematic review and meta-analysis

W Shang, Y Wang, J Yuan, Z Guo, J Liu, M Liu - Vaccines, 2022 - mdpi.com
Background: Currently, reported COVID-19 deaths are inadequate to assess the impact of
the pandemic on global excess mortality. All-cause excess mortality is a WHO …

Flaws and uncertainties in pandemic global excess death calculations

JPA Ioannidis, F Zonta, M Levitt - European journal of clinical …, 2023 - Wiley Online Library
Several teams have been publishing global estimates of excess deaths during the COVID‐
19 pandemic. Here, we examine potential flaws and underappreciated sources of …

Age-stratified infection fatality rate of COVID-19 in the non-elderly population

AM Pezzullo, C Axfors, DG Contopoulos-Ioannidis… - Environmental …, 2023 - Elsevier
The largest burden of COVID-19 is carried by the elderly, and persons living in nursing
homes are particularly vulnerable. However, 94% of the global population is younger than …

The end of the COVID‐19 pandemic

JPA Ioannidis - European journal of clinical investigation, 2022 - Wiley Online Library
There are no widely accepted, quantitative definitions for the end of a pandemic such as
COVID‐19. The end of the pandemic due to a new virus and the transition to endemicity may …

[HTML][HTML] Comparison of pandemic excess mortality in 2020–2021 across different empirical calculations

M Levitt, F Zonta, JPA Ioannidis - Environmental research, 2022 - Elsevier
Different modeling approaches can be used to calculate excess deaths for the COVID-19
pandemic period. We compared 6 calculations of excess deaths (4 previously published [3 …

Estimates of COVID‐19 deaths in Mainland China after abandoning zero COVID policy

JPA Ioannidis, F Zonta, M Levitt - European journal of clinical …, 2023 - Wiley Online Library
Background China witnessed a surge of Omicron infections after abandoning 'zero
COVID'strategies on 7 December 2022. The authorities report very sparse deaths based on …

Factors influencing estimated effectiveness of COVID-19 vaccines in non-randomised studies

JPA Ioannidis - BMJ Evidence-Based Medicine, 2022 - ebm.bmj.com
Non-randomised studies assessing COVID-19 vaccine effectiveness need to consider
multiple factors that may generate spurious estimates due to bias or genuinely modify …

COVID‐19 vaccination in children and university students

JPA Ioannidis - European journal of clinical investigation, 2021 - Wiley Online Library
Strategies for the use of COVID‐19 vaccines in children and young adults (in particular
university students) are hotly debated and important to optimize. As of late August 2021 …

Change in age distribution of COVID-19 deaths with the introduction of COVID-19 vaccination

R Pastorino, AM Pezzullo, L Villani, FA Causio… - Environmental …, 2022 - Elsevier
Objectives Most countries initially deployed COVID-19 vaccines preferentially in elderly
populations. We aimed to evaluate whether population-level vaccine effectiveness is …

[HTML][HTML] Unmasking the COVID-19 pandemic prevention gains: excess mortality reversal in 2022

MP Walkowiak, J Domaradzki, D Walkowiak - Public Health, 2023 - Elsevier
Objectives The purpose of this study was to assess the long-term effectiveness of COVID-19
pandemic prevention measures in saving lives after European governments began to lift …