Birdwatch Archive

Birdwatch Note

2025-06-30 18:11:44 UTC - MISINFORMED_OR_POTENTIALLY_MISLEADING

Thimerosal, the mercury-based preservative in question, A) is safe, and B) was already removed from most vaccines outside of a handful of multi-dose flu vials (which is <4% of total supply), due to a phaseout via the 1997 Food and Drug Administration Modernization Act. https://www.cdc.gov/vaccine-safety/about/thimerosal.html https://www.fda.gov/vaccines-blood-biologics/safety-availability-biologics/thimerosal-and-vaccines https://www.scientificamerican.com/article/what-is-thimerosal-why-most-vaccines-dont-contain-mercury-anymore/

Written by CF77872FFB3E39FD86741BFBBEC06DC967367BE9EF7D723B28CBEA141B357109
Participant Details

All Information

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• noteAuthorParticipantId - CF77872FFB3E39FD86741BFBBEC06DC967367BE9EF7D723B28CBEA141B357109 Participant Details
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• classification - MISINFORMED_OR_POTENTIALLY_MISLEADING
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• summary
• Thimerosal, the mercury-based preservative in question, A) is safe, and B) was already removed from most vaccines outside of a handful of multi-dose flu vials (which is <4% of total supply), due to a phaseout via the 1997 Food and Drug Administration Modernization Act. https://www.cdc.gov/vaccine-safety/about/thimerosal.html https://www.fda.gov/vaccines-blood-biologics/safety-availability-biologics/thimerosal-and-vaccines https://www.scientificamerican.com/article/what-is-thimerosal-why-most-vaccines-dont-contain-mercury-anymore/