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The claim

ファイザー役員が「コロナワクチンに感染予防効果があるか未検証だった」と認めた

Original publisher’s rating

不正確

Reviewed by 日本ファクトチェックセンター ↗ ·

Read the original fact check ↗

Original review summary

The review says pre-authorization trials had not established whether the vaccine prevented infection, but that this limitation had already been publicly disclosed. Small’s answer at the hearing therefore did not reveal a new fact. [S1][S1]

Additional context

The hearing took place on October 10, 2022. [S1] [S1]

Research date:

Sources and attribution

  1. [S1] 日本ファクトチェックセンター original review

    Original review · Retrieved October 16, 2026

Original review: 日本ファクトチェックセンター. Structured data compiled by Data Commons under CC BY 4.0. Publisher article content is subject to its own terms. Summaries and context are produced by PeakMetrics with AI assistance.

Updated