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Frank Han

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Assistant Professor of Pediatric Cardiology, University of Illinois Chicago

The FDA has provided no evidence that children died because of receiving a COVID-19 vaccine. Anchiy/E+ via Getty Images

December 3, 2025

FDA claims on COVID‑19 vaccine safety are unsupported by reliable data – and could severely hinder vaccine access

Frank Han, University of Illinois Chicago

The agency’s plan to change the well-established process for safety testing vaccines is not realistic.

Inflammation of the heart (shown here), known as myocarditis, can be triggered by viral infection, including COVID-19, as well as from COVID-19 vaccination, in rare cases. wildpixel/iStock via Getty Images Plus

March 13, 2023

What the research shows about risks of myocarditis from COVID vaccines versus risks of heart damage from COVID – two pediatric cardiologists explain how to parse the data

Frank Han, University of Illinois Chicago and Jennifer H. Huang, Oregon Health & Science University

Parsing the risk of myocarditis from viral infection versus vaccination is challenging, and researchers are intensely studying the various factors that are at play.

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Location: Peoria, Illinois, U.S.
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Joined July 9, 2020