BOB DOUGHTY: Jesse Lazear died of yellow fever. His death shocked the others on the team in Cuba. But they continued their work.
More people let themselves be bitten by mosquitoes. Others were injected with blood from victims of yellow fever. Some people in this test group developed the disease, but all recovered to full health.
Members of the team praised the work by Jesse Lazear. They called it a sacrifice to research that led the way to one of the greatest medical discoveries of the century.
FAITH LAPIDUS: The research answered the question of how yellow fever was spread. Now the question was how to protect people. The researchers had a theory. They thought that people who were bitten by infected mosquitoes, but recovered, were protected in the future.
To test this idea, the team in Cuba offered one hundred dollars to anyone who would agree to be bitten by infected mosquitoes. Nineteen people agreed. The only American was Clara Maass. She was a nurse who worked with yellow fever patients in Cuba.
Clara Maass
Clara Maass was bitten by infected mosquitoes seven times between March and August of nineteen-oh-one. Only one of the nineteen people developed the disease -- until that August. Then seven people got yellow fever. Clara Maass died six days after she was bitten for the seventh time.
BOB DOUGHTY: The experiment showed that the bite of an infected mosquito was not a safe way to protect people from yellow fever. Medical historians say the death of Clara Maass also created a public protest over the use of humans in yellow fever research. Such experiments ended.
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2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25