OTIS HISTORICAL ARCHIVES, NATIONAL MUSEUM OF HEALTH AND MEDICINE / SCIENCE PHOTO LIBRARY OTIS HISTORICAL ARCHIVES, NATIONAL MUSEUM OF HEALTH AND MEDICINE / SCIENCE PHOTO LIBRARY
Experiments on yellow fever. Close-up of the hand of a test subject volunteer in the period 1900 to 1901, with yellow fever-transmitting mosquitoes biting the skin. The volunteer is part of Walter Reed's groundbreaking yellow fever experiments of 1900-1901. US Army physician Walter Reed (1851-1902) specialised in the study of epidemic diseases. He had been appointed to investigate yellow fever in Cuba. His experiments with human volunteers took place over three phases, with several of the volunteers dying of the disease. The results showed that yellow fever was spread by the Aedes aegypti mosquito. This discovery played a key role in campaigns to reduce the spread of this disease.
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