Justin Hart
November 29, 2025
Rational Ground (Substack)

OVRR (Office of Vaccines Research and Review) within the FDA is responsible for assuring the availability of safe and effective vaccines, allergenic extracts and other related products.

OBPV (Office of Biostatistics and Pharmacovigilance) is a division of the FDA that evaluates the safety and effectiveness of biologic products throughout their lifecycle. 

Justin Hart is an executive consultant with more than twenty-five years of experience with Fortune 500 companies and presidential campaigns. He’s also Chief Data Analyst and founder of RationalGround.com which helps companies, public officials, and even parents gauge the impact of COVID-19 across the country. In that capacity, he’s worked with everyone from Florida Governor Ron DeSantis to Dr. Scott Atlas to Dr. Jay Bhattacharya. (source)

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adverse events,adverse-event reporting systems,at risk populations,COVID-19,deaths,fact checking,health statistics,health statistics misleading practices,vaccines