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Stanford-Led Research Reexamines COVID Vaccine Effectiveness in Preventing Deaths

UNITED STATES, JUL 25 – A global study found COVID-19 vaccines saved 2.5 million lives and 14.8 million years of life, mainly benefiting people over 60, with one death prevented per 5,400 doses.

  • Global data show 2.533 million deaths were prevented by SARS-CoV-2 vaccinations, one death was avoided per 5,400 doses between 2020-2024.
  • Professor Stefania Boccia said these estimates are substantially more conservative, highlighting the benefit of COVID-19 vaccination over 2020-2024 compared to one-year models.
  • Analysis reveals 14.8 million life years were saved, 76% of which involved those over 60.
  • In a July 25, 2025, statement, WHO said 14.4 million lives were saved in the first year, adding that results should guide future targeted, evidence-based campaigns.
  • In principle, targeting high-benefit populations makes sense, while blanket mandates for low-risk groups drew criticism.
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Corona vaccines saved a total of 15 million life years, according to a recent study.

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Medical Xpress broke the news in on Friday, July 25, 2025.
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