Charity Dean on the Lessons of Covid-19

Bloomberg Opinion columnist Barry Ritholtz speaks with public-health expert Dr. Charity Dean, who as a health official in California was among the first Americans to recognize the grave threat posed by Covid-19. Her story is recounted in Michael Lewis's latest book, "The Premonition: A Pandemic Story." She is the co-founder of The Public Health Company, which she also leads as chief executive officer.

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