JAMA. 1922;79(24):2002-2003. doi:10.1001/jama.1922.02640240036015.
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Although the mode of infection is fairly well established, particularly with respect to the entrance of the larvae present in polluted soil through the skin of various parts, such as the feet, and although effective drugs which bring about elimination of the worms from the bowel are well known, the task of stamping out hookworm disease has proved to be unexpectedly formidable. That there are parts of the world in which almost the entire population is infected with hookworm has been widely heralded; but it may come as a surprise to many that out of a total of more than half a million men examined for hookworm in the U. S. Army during the World War, 56,740, or 11.3 per cent., were found to be infected with this intestinal parasite.1 In the recruits from the so-called hookworm area the incidence averaged 17 per cent., rising as high as 32


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