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Intestinal parasites produce a variety of symptoms in those affected, most of which manifest themselves in gastrointestinal complications and general weakness. [1] Gastrointestinal conditions include inflammation of the small and/or large intestine , diarrhea / dysentery , abdominal pains , and nausea / vomiting .
Echinostomiasis is a parasitic infection caused by several species of intestinal fluke from the family, Echinostomatidae. The most common cause of echinostomiasis is from the members of the genus, Echinostoma. [15] These parasites are found worldwide, but are particularly common in South East Asia such as South Korea and the Philippines. The ...
There is a strong correlation between the morbidity of intestinal schistosomiasis and the intensity of infection. [19] In light infections, symptoms may be mild and can go unrecognized. [26] The most common species to cause intestinal schistosomiasis are S. mansoni and S. japonicum, however, S. mekongi and S. intercalatum can also cause this ...
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]
Eggs of different species of parasitic worm. Parasitic worms, also known as helminths, [1] are a polyphyletic group of large macroparasites; adults can generally be seen with the naked eye. Many are intestinal worms that are soil-transmitted and infect the gastrointestinal tract. Other parasitic worms such as schistosomes reside in blood vessels.
As early as 1835, trichinosis was known to have been caused by a parasite, but the mechanism of infection was unclear at the time. A decade later, American scientist Joseph Leidy pinpointed undercooked meat as the primary vector for the parasite, and two decades afterward, this hypothesis was fully accepted by the scientific community. [52]
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