Report on trichinae and trichinosis / United States Marine Hospital Service ; prepared, under direction of the supervising Surgeon-General, by W.C.W. Glazier.

  • United States. Marine Hospital Service.
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: Report on trichinae and trichinosis / United States Marine Hospital Service ; prepared, under direction of the supervising Surgeon-General, by W.C.W. Glazier. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    Professor Dalton (Trans. X. Y. Acad., 1SG4) found 12 trichina? in a piece of muscle inch square by inch in thickness, giving 85,000 to a cubic inch. Leuckart (Untermele, etc., p. 34) in 0.006 gram of muscle found “ not less than 60 worms, and yet in no place did it appear strongly trichinosed, and estimated that 1.5 kilos, would contain about 15,000,000 trichinae, or about five million to one pound. Bowditch (Boston Medi- cal and Surgical Journal, vol. XXVI, 1842, p. 121) estimates 7,6S0,000 in his first case.” Thudichum estimated 40,000,000 in the body of a Ger- man who died in the London Hospital, and Oobbold (op. tit., p. 161) thinks “that 100,000,000 would come nearer the figure, as a needle could scarcely be thrust between the capsules, they were so abundant,” and p. 170, that “an ounce of hog’s muscle from Dr. Dickinson’s case contained 85,000 trichinae.” Belfield and Atwood (Report of the Chicago Board of Health, 187S) found 35 to 13,000 parasites in a cubic inch of muscle. Sutton (Report on Trichinosis, Reprint from Trans. Indiana State Med- Soc., 1875) estimated 100,000 in a cubic inch of muscle taken from the gastrocnemius of a female patient. Schaan (These de Paris, 1872, p. 20) counted 19 trichinae in 0.05 gram of meat, and estimates, allowing two-thirds for fat and bones, that a hog weighing 150 kilos. (300 pounds) would contain 13,000,000 trichinae. Leuckart says (Mensch. Parasiten p. 532, B. II): “Owens’s estimate [100,000,000] was behind the reality, for in one case observed by myself there were about 1,200-1,500 trichinae capsules in one gram (15 grains) of flesh, which, allowing 40 pounds for the weight of the muscle, would give 30,000,000. * * * Fiedler estimated 94,000,000