Taxonomy: f. Enteromonadidae
Animal: Enteromonas hominis 1 07.jpg
Sites: Gut
Enteromonas hominis trophozoites 4 - 10 x 3 - 6 microns in fresh saline faecal preparation. Jerky movement. N.B. In stain preparation (see 1.02) see 3 anterior flagella and 1 posterior flagella extending free posteriorly or laterally. One side of body flattened. One nucleus. E.hominis is often not recognised so little is known of this organism,; it may be more common than is thought. They were from a specimen from a 50 year old female with 2 months history of diarrhoea following a trip to Africa. They were present in one of 4 stool samples presented over a 6 week period. Also present were Entamoeba coli trophozoites and cysts and Enteromonas cysts. No pathogenic organisms were isolated and the cause of her symptoms was not identified. These parasites are often not reported because of their small size and if not examined fresh within 30 minutes of collection or fixed fresh, they disintegrate and also because of the difficulties in identification under LM. They are considered non-pathogenic but are little studied. EM was performed on this specimen to assist in identification. (see 12 04, 05)

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