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The U.S. Navy injects 64 incarcerated men with cow blood.

Date: 1942

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Led by Dr. Edward J. Cohn, a Harvard biochemist, the study uses incarcerated men at a state prison in Norfolk, Massachusetts to explore the use of cow blood during shortages of plasma. Sixty-four men are injected– 24 grow sick with "serum sickness," and one will die. The experiments ultimately fail to produce the desired results.