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Dientamoeba fragilis Infection in Patients with Digestive and Non-Digestive Symptoms: A Case-Control Study.


ABSTRACT: In most developing countries, Dientamoeba fragilis infection is an obscure protozoan infection. We aimed to determine a frequency and clinical importance of D. fragilis infection in Taif, Saudi Arabia. A 1-year case control study included patients with gastrointestinal (cases, n=114) or non-gastrointestinal symptoms (controls, n=90). The fecal samples were examined with the classical parasitological methods for intestinal protozoa, and by real time PCR for D. fragilis. The infection by D. fragilis was detected in 5.8% by PCR and in 4.4% patients by microscopy. The infection was identified more in control group (n=9) than in cases (n=3); a sole infection in 11 patients and mixed with Giardia in 1 patient. The other enteric parasites detected were Blastocystis sp. (8.3%), Giardia sp. (5.3%), Cryptosporidium sp. (2.9%), Entamoeba histolytica (1.4%), Entamoeba coli (0.9%) and Hymenolepis nana (0.4%). Our results tend to reinforce the need to increase awareness of D. fragilis infection in Saudi Arabia.

SUBMITTER: Hawash YA 

PROVIDER: S-EPMC7231832 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Dientamoeba fragilis Infection in Patients with Digestive and Non-Digestive Symptoms: A Case-Control Study.

Hawash Yousry A YA   Ismail Khadiga A KA   Saber Taisir T   Eed Emad M EM   Khalifa Amany S AS   Alsharif Khalaf F KF   Alghamdi Saleh A SA  

The Korean journal of parasitology 20200430 2


In most developing countries, Dientamoeba fragilis infection is an obscure protozoan infection. We aimed to determine a frequency and clinical importance of D. fragilis infection in Taif, Saudi Arabia. A 1-year case control study included patients with gastrointestinal (cases, n=114) or non-gastrointestinal symptoms (controls, n=90). The fecal samples were examined with the classical parasitological methods for intestinal protozoa, and by real time PCR for D. fragilis. The infection by D. fragil  ...[more]

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