EditorialAn employee with a pickup order at a Subway that is testing PopID, a facial recognition system that checks workers for fevers, March 29, 2020. (Tag Christof/The New York Times)
EditorialSmart thermometers made by Kinsa. a company that has tracked the flu in the U.S. by aggregating data on fevers, in New York, Oct. 19, 2018. (Tony Cenicola/The New York Times)
EditorialFloor plan of Newcastle hospital basement. A Collection of Papers, intended to promote an institution for the cure and prevention of infectious fevers in Newcastle and other populous towns, etc. Newcastle. 1802. Source: 7561.b.42 Title page (verso). La...