Fact Check: Did Japanese doctors find that more COVID-19 shots mean people die sooner?

Media Bias Fact Check (MBFC) publishes daily vetted fact checks from verified IFCN-approved sources. Each claim is independently reviewed for accuracy and context.


Claimant: Social Media


Claim: Japanese doctors with a database of 18 million vaccinated people found that the more shots people received, the sooner they died.


Rating: MISLEADING


Explanation: The analysis did not account for major confounding factors such as age, health status, and underlying medical conditions. Published studies have not found that COVID-19 vaccination is associated with higher overall mortality.


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Date: 06/23/2026


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Last Updated on June 23, 2026 by Media Bias Fact Check