. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. SCHISTOSOMA HAEMATOBIUM 213 From this symptom the disease caused by infection with Schis- tosoma hwmatobium is often called " parasitic ; Ex- cept in severe infections no serious symptoms appear, but when numerous the worms cause much pain and give rise to a great variety of abnormal conditions of the bladder. The damage they do is partly the result of blocking of the veins, and partly the result of inflammation and bleeding of the bladder caused by its penetration by the spined egg
. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. SCHISTOSOMA HAEMATOBIUM 213 From this symptom the disease caused by infection with Schis- tosoma hwmatobium is often called " parasitic ; Ex- cept in severe infections no serious symptoms appear, but when numerous the worms cause much pain and give rise to a great variety of abnormal conditions of the bladder. The damage they do is partly the result of blocking of the veins, and partly the result of inflammation and bleeding of the bladder caused by its penetration by the spined eggs. Sometimes the kidneys, ureters and other urino-genital organs are attacked and seriously affected. In addition there can be little doubt but that the worms excrete poisonous matter in the blood, as practically all parasitic worms do to some extent, and this probably accounts for part at least of the anemic and debilitated condition so common in infected people. It is reported that of 625 British soldiers who became. 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 Crawford, 1891-. New York, J. Wiley
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