Men wearing masks outside the U.S. Army hospital in Fort Porter, New York, during the 1918 flu pandemic. The images and memories we preserve from COVID-19 are still to be determined. (Credit: Everett Historical/Shutterstock)

Flu Pandemic 1918 - Shutterstock

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Donald S. Burke, Dean Emeritus and Distinguished University Professor Emeritus of Health Science and Policy, and of Epidemiology, at the School of Public Health, University of Pittsburgh