. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 121. Stages in calcification of trichina; ,i A, ends calcified; B, thin layer of calcareous mately reSl Ue material over whole cyst, worm beginning to degenerate; C, complete calcification. (After Ostertag.) entire cyst becoming hard- ened into a calcareous nodule (Figs. 121B and C), and even the enclosed worm, which usually degenerates and dies after some months, becomes calcified after a number of years. There are cases, however, where the trichina worms do not die and disintegrate so soon, and t
. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. Fig. 121. Stages in calcification of trichina; ,i A, ends calcified; B, thin layer of calcareous mately reSl Ue material over whole cyst, worm beginning to degenerate; C, complete calcification. (After Ostertag.) entire cyst becoming hard- ened into a calcareous nodule (Figs. 121B and C), and even the enclosed worm, which usually degenerates and dies after some months, becomes calcified after a number of years. There are cases, however, where the trichina worms do not die and disintegrate so soon, and the calcification process is much slower. There are records of these worms found living in cysts in hogs 11 years after in- fection and in man 25 to 31 years after, though it is doubt- ful whether in some of these cases a fresh infection did not. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chandler, Asa C. (Asa Crawford), 1891-1958. New York, J. Wiley & sons, inc. ; London, Chapman & Hall
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmedical, bookyear1918
