Dientamoeba fragilis


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Di·ent·a·moe·ba frag·i·lis

(dī'ent-ă-mē'bă fraj'i-lis),
A species of small amebalike flagellates, formerly considered a true ameba, now recognized as an ameboflagellate related to Trichomonas, parasitic in the large intestine of humans and certain monkeys; may be nonpathogenic, but believed to be capable of sometimes causing low-grade inflammation with mucous diarrhea and gastrointestinal disturbance in humans.

Di·ent·a·moe·ba frag·i·lis

(dī'ent-ă-mē'bă fră-jil'ŭs)
A species of small amebalike flagellates related to Trichomonas, parasitic in the large intestine of humans and certain monkeys; usually nonpathogenic, but sometimes causing low-grade inflammation with mucous diarrhea.

Dientamoeba fragilis

A species of parasitic ameba inhabiting the intestine of humans. Persons infected may have diarrhea with blood or mucus, abdominal pain, and anal pruritus. This ameba has been found inside the eggs of pinworms. The eggs may act as a vector.
See also: Dientamoeba

Dientamoeba

a genus of amebas commonly found in the colon and appendix of primates and of humans.

Dientamoeba fragilis
occurs in the cecum of humans and monkeys. A species that has been associated with diarrhea but its pathogenicity is unclear.
References in periodicals archive ?
In the United States, or anywhere in the Northern Hemisphere for that matter, two parasites commonly cause diarrheal illness: Giardia lamblia and Cryptosporidium parvum, and two uncommonly: Entamoeba histolytica and Dientamoeba fragilis.
The flagellated protozoan Dientamoeba fragilis is one of the most common parasites in the intestinal tract of humans (1).
Emerging from obscurity: biological, clinical, and diagnostic aspects of Dientamoeba fragilis.
A review of Dientamoeba fragilis carriage in humans: several reasons why this organism should be considered in the diagnosis of gastrointestinal illness.
Internal transcribed spacer dimorphism and diversity in Dientamoeba fragilis.
Dientamoeba fragilis in swine population: a preliminary investigation.
Real-time PCR for the detection of Dientamoeba fragilis in fecal samples.
Clinical and microbiological features of dientamoebiasis in patients suspected of suffering from a parasitic gastrointestinal illness: a comparison of Dientamoeba fragilis and Giardia lamblia infections.
Intragenomic variation in the internal transcribed spacer 1 region of Dientamoeba fragilis as a molecular epidemio logical marker.
intestinalis is rarely seen in urine sediment and is generally not clinically significant because, of the six genera of flagellates that parasitize the human intestinal or urogenital tracts, only Giardia lamblia, Dientamoeba fragilis and Trichomonas vaginalis are considered pathogens.
The possibly nonpathogenic parasite Dientamoeba fragilis and the nonpathogenic parasite Blastocystis hominis were common and were found more frequently in controls than in patients.