from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Infestation with or disease caused by a parasitic roundworm Ascaris lumbricoides.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A disease of humans caused by the parasitic roundworm Ascaris lumbricoides.

from the GNU version of the Collaborative International Dictionary of English

  • n. A disease, usually accompanied by colicky pains and diarrhea, caused by the presence of ascarids in the gastrointestinal canal.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. infestation of the human intestine with Ascaris roundworms


from The American Heritage® Dictionary of the English Language, 4th Edition

ascar(id) + -iasis.


  • Infections of this intestinal roundworm, called ascariasis, are extremely common in rural communities around the world and affect as many as 1.5 billion people, almost one-quarter of the world's population.


  • This plant is widely used in medicine for treating ascariasis and as a bactericidal agent; it is also used in perfume industry.

    Tian Shan foothill arid steppe

  • They would learn that a significant number of other crippling and killing diseases, including African river blindness, schistosomiasis, trauchoma, lymphatic filariasis, hookworm, ascariasis, and trichuriasis, could be brought under control for well under $2 per American citizen per year, and perhaps just $1 per American citizen!

    How Aid Can Work

  • Excreta fertilized crops are, therefore, potential transmitters of A. Lumbricoides eggs where ascariasis is endemic.

    Chapter 6

  • The World Health Organisation has identified ascariasis as a neglected disease in urgent need of better research and control. | Top Stories

  • Ascaris suum is closely related to Ascaris lumbricoides which causes ascariasis in humans. | Top Stories

  • Acute intestinal symptoms requiring surgery due ascariasis


  • Approximately one-third of the estimated 800 million ascariasis infection cases occur in nuclear weapons states, including India (140 million), China (86 million), North Korea (8 million), Pakistan (7 million), and Iran (5 million). - latest science and technology news stories


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  • Also seen here. (Not for people who don't like bugs.)

    April 17, 2009


    Ascariasis is the most common helminthic infection, with an estimated worldwide prevalence of 25% (>1.25 billion people). Usually asymptomatic, infections are most prevalent in tropical and developing countries, where they are perpetuated by contamination of soil by human feces or use of untreated feces as fertilizer. Symptomatic disease may be manifested by growth retardation, pneumonitis, intestinal obstruction, or hepatobiliary and pancreatic injury. In developing countries, ascariasis may exist as a zoonotic infection associated with exposure to pigs or pig manure.

    Intestinal obstruction in children is the most commonly attributed fatal complication, resulting in 8000-100,000 deaths per year, according to the World Health Organization. Besides direct obstruction of the bowel lumen, toxins released by live or degenerating worms may result in bowel inflammation, ischemia, and fibrosis.


    Symptoms include cough, dyspnea, asthma, and chest pain (during the initial lung migration). This may be seasonal in some countries, such as Saudi Arabia.

    Abdominal pain, distension, colic, nausea, anorexia, and intermittent diarrhea may be manifestations of partial or complete intestinal obstruction by adult worms.

    Jaundice, nausea, vomiting, fever, and severe or radiating abdominal pain may suggest cholangitis, pancreatitis, or appendicitis.


    Rales, wheezes, and tachypnea may be present during pulmonary migration.

    Abdominal distension is nonspecific but is often observed in children with worms.

    Abdominal tenderness, especially in the right upper quadrant, hypogastrium, or right lower quadrant, may suggest complications of ascariasis.

    January 7, 2007