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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 in the beginning of the disease. [1]
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 ...
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]
Ascaris trichiura Linnaeus, 1771 Trichuris trichiura , Trichocephalus trichiuris or whipworm , is a parasitic roundworm (a type of helminth ) that causes trichuriasis (a type of helminthiasis which is one of the neglected tropical diseases ) when it infects a human large intestine .
Soil-transmitted helminthiasis – this includes ascariasis (Ascaris lumbricoides infection), trichuriasis (Trichuris infection), and hookworm infection (includes necatoriasis and Ancylostoma duodenale infection) Trichostrongyliasis (Trichostrongylus spp. infection) Dracunculiasis (guinea worm infection)
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Important parasites which inhabit the lungs as part of their normal life cycle include the worms Ascaris lumbricoides, Strongyloides stercoralis and the hookworms Ancylostoma duodenale and Necator americanus. When eosinophilic pneumonia is caused by helminths, it is often called "Löffler's syndrome". The final group of parasites cause ...