The claim
日本教授福島雅典調查揭新冠疫苗副作用達201種
Original review summary
The review traces the claim of 201 vaccine side effects or sequelae to Fukushima’s compilation of reports presented at Japanese medical conferences. It says the source spreadsheet cautions that reports of conditions observed after vaccination do not establish causation, and that the two social-media pages omitted the method and limitations when presenting the 201 conditions as side effects or sequelae.[S1]
Additional context
The review explains that case reports record individual cases and lack the systematic sampling and control groups needed to determine causation or calculate frequency. [S1]
Research date:
Sources and attribution
- [S1] Factcheck Lab 事實查核實驗室 original review
Original review · Retrieved October 17, 2026