Roundworms are almost worldwide in distribution and are abundant in the surface layers of soils. Roundworm infections are common and frequently go unnoticed, but several species cause serious diseases.
It is a helminthes infection of the small intestine. A person becomes infected by swallowing infective eggs. Symptoms are variable, often vague or absent. Live worms passed in stools or vomiting are frequently the first recognized sign of infection. Pulmonary signs too are present. Heavy parasite burdens may cause digestive and nutritional disturbance.
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