David Barnes is Associate Professor of History and Sociology of Science at the University of Pennsylvania. He is the author of The Making of a Social Disease: Tuberculosis in Nineteenth-Century France (University of California Press, 1995) and The Great Stink of Paris and the Nineteenth-Century Struggle against Filth and Germs (Johns Hopkins University Press, 2006), as well as numerous articles about the history, culture, and politics of public health. His third book, a history of Philadelphia’s Lazaretto quarantine station (1799-1895), will be published in early 2023. He has been working since 2006 to preserve the Lazaretto site on the Delaware River in Tinicum Township, and has taught and published about public history and historic preservation. He guest edited an issue of the journal Change Over Time on the interpretation of historic sites related to detention, isolation, and quarantine, to be published in fall 2022.