They found in the late '30s -- 10 years after they'd made these dams -- that the people in Northern Alabama were infected with malaria, about a third to half of them were infected with malaria.
Eles descobriram no final dos anos 30 -- que 10 anos após a construção das represas -- as pessoas no Norte do Alabama estavam infectadas com malária. De um terço a metade delas estavam infectadas com malária.