Walter Reed,US Army physician

Numéro d’image : 11697132
Walter Reed,US Army physician
Walter Reed (1851-1902),US Army physician who specialised in the study of epidemic diseases. Reed pioneered ways of preventing and controlling typhoid epidemics. In 1896 he proved that malaria was not caused by bad water. In 1899 he proved that the bacterium Bacillus icteroides caused hog cholera,but not yellow fever. In 1900 Reed was appointed to investigate yellow fever in Cuba. He used human volunteers in disease-transmission experiments as yellow fever did not affect animals. He showed that yellow fever was not spread by contact or contaminated bedding,but by the Aedes aegypti mosquito. Reed was promoted to the rank of Major in 1893
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