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February 20, 1937


JAMA. 1937;108(8):659. doi:10.1001/jama.1937.02780080053026

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To the Editor:—  In view of the difficulty sometimes found in getting rid of Trichuris trichiura infestation, the following note may be of interest: I purchased a small sheep-dog pup from a famous kennel and was distressed to find a week later that he was infested not only with Ascaris and hookworm but also with whipworm. I treated him with a standard preparation of tetrachlorethylene and completely eliminated the Ascaris and hookworm but found no reduction in the quantity of whipworm eggs, which averaged 8 or 10 to a low power field in simple smear preparations. These eggs were invariably present on repeated examinations over several weeks. The dog suffered from severe colitis, passing mucus and blood in loose stools, and was obviously anemic. Having at hand samples of a well known preparation of coated tablets of ferrous sulfate 3 grains (0.2 Gm.), I gave the dog, which weighed 10

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