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Giardia duodenalis, also known as Giardia intestinalis and Giardia lamblia, is a flagellated parasitic protozoan microorganism of the genus Giardia that colonizes the small intestine, causing a diarrheal condition known as giardiasis. [1] [2] [3] The parasite attaches to the intestinal epithelium by a ventral disc (syn.
Giardiasis is a parasitic disease caused by Giardia duodenalis (also known as G. lamblia and G. intestinalis). [3] Infected individuals who experience symptoms (about 10% have no symptoms) may have diarrhea, abdominal pain, and weight loss. [1] Less common symptoms include vomiting and blood in the stool. [1]
About 40 species have been described, but most of them are probably synonyms. [11] Currently, five to six morphologically distinct species are recognised. [12] Giardia duodenalis (=G. intestinalis, =G. lamblia) infect humans and other mammals, G. microti infects voles, G. muris is found in other mammals, G. ardeae and G. psittaci in birds, and G. agilis in amphibians. [4]
The common intestinal parasite Giardia duodenalis (synonyms Giardia lamblia, G. intestinalis) was once considered to be a descendant of a protist lineage that predated the emergence of meiosis and sex. However, researchers found G. duodenalis to have a core set of genes that function in meiosis and that are widely present among sexual ...
Giardia lamblia; Usage on fa.wikipedia.org کیست میکروبی; Usage on fi.wikipedia.org Giardia lamblia; Usage on fr.wikipedia.org Projet:Impression/Quality images/51; Usage on gl.wikipedia.org Giardia intestinalis; Usage on he.wikipedia.org Giardia lamblia; Usage on hu.wikipedia.org Giardia duodenalis; Usage on id.wikipedia.org Giardia ...
Studies of trips [2] [20] that are much longer than the average incubation period, e.g. a week for Cryptosporidium and Giardia, [9] [10] are less susceptible to these errors since there is enough time for the diarrhea to occur during the trip. Other bacterial and viral agents have shorter incubation periods, although hepatitis may require weeks.
Free-living, sometimes loricate flagellates, with very gene-rich mitochondrial genomes Metamonada or POD: Preaxostyla: Oxymonads, Trimastix: Amitochondriate flagellates, either free-living (Trimastix, Paratrimastix) or living in the hindguts of insects Fornicata: Giardia, Carpediemonas: Amitochondriate, mostly symbiotes and parasites of animals ...
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