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An estimated 807 million–1.2 billion people are infected with A. lumbricoides worldwide. [2] People living in tropical and subtropical countries are at greater risk of infection. Infection by Ascaris lumbricoides is known as ascariasis. [3] It has been proposed that Ascaris lumbricoides and Ascaris suum (pig roundworm) are the same species. [4]
Ascariasis is a disease caused by the parasitic roundworm Ascaris lumbricoides. [1] Infections have no symptoms in more than 85% of cases, especially if the number of worms is small. [1] Symptoms increase with the number of worms present and may include shortness of breath and fever at the beginning of the disease. [1]
A. lumbricoides was originally called Lumbricus teres and was first described in detail by Edward Tyson in 1683. [8] The genus Ascaris was originally described as the genus for Ascaris lumbricoides by Carl Linnaeus in 1758. [9] The morphologically similar Ascaris suum was described from pigs by Johann August Ephraim Goeze in 1782. [9]
Female Ascaris lumbricoides. Ascariasis of STH is caused by the large roundworm A. lumbricoides. It is estimated to be the most widespread STH, affecting approximately 1 billion people. The victims constitute about half of the populations in tropical and subtropical areas. Most conditions are mild and often show little or no symptoms. Heavy ...
View history; Tools. Tools. move to sidebar hide. Actions ... Ascaris †Ascarites (fossil) ... Ascaris lumbricoides is the main ascarid parasite of humans, ...
Soil-transmitted helminthiasis is a collective name for the diseases caused by ascaris, whipworm and hookworms in humans. It includes species-specific diseases such as [citation needed] Ascariasis, which is caused by Ascaris lumbricoides; Hookworm diseases (ancylostomiasis and necatoriasis), which are caused by Necator americanus and ...
Hookworms attached to the intestinal mucosa Two pinworms Image showing life cycle inside and outside of the human body of one fairly typical and well described helminth: Ascaris lumbricoides. Helminths are a group of organisms which share a similar form but are not necessarily evolutionarily related. The term "helminth" is an artificial term.
Birth of modern helminthology. Detailed anatomy of the roundworm (Ascaris lumbricoides) is described, first by English physician Edward Tyson (1683), and shortly afterward by the Italian Francesco Redi (1684). [3] Roundworm England, Italy 1799–1801: Crisis: Napoleon's soldiers almost certainly suffer from haematuria caused by schistosomiasis ...