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Sanitary engineer Ralph E. Tarbett oversees malaria control work during World War I. A drip can containing oil and kerosene is used to eliminate a mosquito-breeding area. Starting in 1912 and 1913 malaria studies and malaria control efforts were led by Public Health Service officer Henry R. Carter and Rudolph H. von Ezdorf. From 1912 to 1917 the main effort was directed toward determining where malaria was prevalent in the United States and measuring its economic impact.
c. 1917
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