Yellow Fever Epidemic of 1793: ‘All was not right in our city.’ October 25, 2019 Michael Yudell, PhD, a professor and chair, and Esther Chernak, MD, an associate clinical professor, both in the Dornsife School of Public Health, are quoted in an Oct. 25 episode of WHYY-Radio’s "The Pulse" about the Yellow Fever Epidemic of 1793. View story