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Are You Really Allergic to Penicillin? (Update)

Jul 17, 2026 · 1h 5m

Summary

Host Stephen Dubner shares his journey to being "de-labeled" from a false penicillin allergy, revealing that 90% of those who believe they are allergic are not. Allergists Elena Resnick and Kimberly Blumenthal explain the medical dangers and economic costs of this widespread misdiagnosis. The episode also features medical anthropologist Teresa McPhail, who discusses the broader confusion surrounding food and environmental allergies.

Topics discussed

Sponsors and introduction Host's personal health crisis and penicillin allergy belief History of penicillin and the prevalence of false allergy labels Interview with allergist Elena Resnick on immune system and testing Host's testing process and recovery from thyroiditis Dr. Kimberly Blumenthal on the medical costs of misdiagnosis Ozempic advertisement Sponsors: Southern Company and Advantech Teresa McPhail on the cultural and economic rise of allergies The hygiene hypothesis and impact on pregnancy care Surgical risks and financial savings of delabeling Sponsors: Figure, Angie, and PNC Bank Barriers to widespread delabeling and the PAVE Act Thomas Platts-Mills on research funding and unusual allergy theories Future of allergy testing and host's gratitude Listener feedback, new show announcement, and closing sponsors
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