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Analysis of the Epithelial Damage Produced by Entamoeba histolytica Infection
Published on: June 12, 2014
A review of the clinical presentation of dientamoebiasis
Damien Stark1, Joel Barratt, Tamalee Roberts
1Department of Microbiology, St. Vincent's Hospital, Darlinghurst 2010, NSW, Australia. dstark@stvincents.com.au
Abstract:
Among 750 symptomatic and asymptomatic patients, Dientamoeba fragilis was detected at a prevalence of 5.2% and more common than Giardia intestinalis. Most infected patients presented with diarrhea and abdominal pain with symptoms greater than 2 weeks duration being common. Bacterial and viral causes of infection were excluded by routine microbiological techniques. Treatment of D. fragilis infection with either iodoquinol, paromomycin, or combination therapy resulted in the eradication of the parasite and complete resolution of symptoms. Treatment failure/relapses were associated only with the use of metronidazole. Nineteen patients were examined for pin worm, no Enterobius vermicularis, a proposed vector of transmission, were detected. Intermittent shedding of D. fragilis was found to be highly variable. These studies confirm the pathogenic nature of D. fragilis and we recommend laboratories routinely test for the organism.
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