. Animal parasites and human disease. Parasites; Medical parasitology; Insects as carriers of disease. /3. *d3 m$'"'compJmmm 5 <& c ^^ B. D Fig. 52. Sarcosporidia. A, Sarcocystis blanchardi of ox, longitudinal section of infected muscle fiber (m. f.) showing spores (sp.) in chambers of compartments (comp.); n., nucleus of muscle fiber, X 265. (After von Eecke from Wasilewsky.) B, cross section of sarcocyst from human larynx, probably S. tenella, X 200. D, same, longitudinal section. (After Baraban and St. Remy.) C, spore of S. tenella of sheep. (After Laveran and Mesnil.) the same
. Animal parasites and human disease. Parasites; Medical parasitology; Insects as carriers of disease. /3. *d3 m$'"'compJmmm 5 <& c ^^ B. D Fig. 52. Sarcosporidia. A, Sarcocystis blanchardi of ox, longitudinal section of infected muscle fiber (m. f.) showing spores (sp.) in chambers of compartments (comp.); n., nucleus of muscle fiber, X 265. (After von Eecke from Wasilewsky.) B, cross section of sarcocyst from human larynx, probably S. tenella, X 200. D, same, longitudinal section. (After Baraban and St. Remy.) C, spore of S. tenella of sheep. (After Laveran and Mesnil.) the same way as is the case with the nose parasite. Although the muscle parasites have been known to parasitologists for many years there are portions of the life history which are not yet known. Darling and others have suggested that these pe- culiar protozoans may be " side-tracked varieties of parasites of invertebrate ; We have no definite knowledge of the normal means of transmission although a number of possible methods are known. It has been found that infections can be spread by cannibalism, and that the faeces of infected mice can infect other mice; it has also been stated that spores occur in the circulating blood, which would mean that blood-sucking ar- thropods may be instrumental in the transfer. Fleshflies may also play a part in dispersing the ; Erdmann has shown that when spores of Sarcosporidia de- velop in the intestine a very powerful toxin, called sarcocystin, is discharged and destroys the neighboring epithelial cells of the intestine and thus breaks a way for the young parasite into the. 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
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
