Vaccine Policy Turmoil: How the Prasad Memo Exposed Regulatory Rifts and Rattled mRNA Markets
SHERIDAN, WYOMING - December 2, 2025 - A leaked memo from FDA vaccine chief Vinay Prasad alleging that COVID-19 vaccines caused the deaths of 10 children has triggered a sharp backlash from scientific experts and investors, underscoring deep tensions inside U.S. vaccine regulation and adding fresh volatility for mRNA players Moderna and BioNTech.
An internal memo with external market consequences
In a six-page document titled "Deaths in children due to COVID-19 vaccines and CBER's path forward," Center for Biologics Evaluation and Research head Vinay Prasad claimed that an internal investigation had identified 10 child deaths "linked" to COVID-19 vaccination, based on reports in the Vaccine Adverse Events Reporting System (VAERS). The memo, published by The Washington Post, did not provide specific data, case details or manufacturer names.