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n. a disease caused by an infestation with the parasitic worm Ascaris lumbricoides. Adult worms in the intestine can cause abdominal pain, vomiting, constipation, diarrhoea, appendicitis, and peritonitis; in large numbers they may cause obstruction of the intestine. The presence of the migrating larvae in the lungs can provoke pneumonia. Ascariasis occurs principally in areas of poor sanitation; it is treated with levamisole.

Subjects: Medicine and Health.

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