Experiments Upon Volunteers to Determine the Cause and Mode of Spread of Influenza, Boston, November and December, 1918

The following influenza contagion study was published by the Treasury Department: United States Public Health Service, February, 1921, p. 5 – 41, in which it was concluded that: “The results of our experiments do not warrant positive conclusions.” https://quod.lib.umich.edu/cache/3/7/5/3750flu.0016.573/00000011.tif.1.pdf#zoom=75 https://quod.lib.umich.edu/f/flu/3750flu.0016.573