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July 13, 1901

THE MODE OF INFECTION IN ANCHYLOSTOMIASIS.

JAMA. 1901;XXXVII(2):117-118. doi:10.1001/jama.1901.02470280041014

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Abstract

Anchylostomiasis is caused by a parasitic worm, the uncinaria duodenalis or anchylostomum duodenale, which inhabits the upper part of the intestine and produces, by removal of blood and possibly by intoxication, an anemic disease of extraordinary frequency in some parts of the world, especially Egypt, Italy, India, and also elsewhere. This disease is known also as Egyptian chlorosis, brickmaker's anemia, mountain anemia, miner's cachexia, etc. In the United States we are apparently free from the infection; at all events no observations have been made upon the disease in this country, except possibly in some of the southern states. The diagnosis is made by finding the eggs in the stools of persons with chronic anemia and wasting as well as more or less well-marked intestinal disorders. The mode of infection is supposed to occur through the drinking water, because the larvæ develop in moist earth, whence they may readily enter the

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