Related Experiment Video
Updated: Jul 17, 2026

Comparative Analysis of Automatic Fecal Analyzer versus Direct Wet Smear Microscopy for Detecting Parasitic Infections in Stool Samples
Published on: April 25, 2025
Parasitic etiology of childhood diarrhea
Ogunlesi Tinuade1, Okeniyi John, Oseni Saheed
1Wesley Guild Hospital, Ilesa, Nigeria. tinuade_ogunlesi@yahoo.co.uk
Insights
Parasitic infections are common in Nigerian children under five experiencing diarrhea. Malnutrition and lower socioeconomic status are significant risk factors for these parasitic infestations.
Area of Science:
- Medical Parasitology
- Pediatric Infectious Diseases
- Public Health
Background:
- Diarrhea remains a leading cause of morbidity and mortality in children under five globally.
- Parasitic infections are a significant, yet often overlooked, contributor to childhood diarrhea, particularly in resource-limited settings.
Purpose of the Study:
- To determine the prevalence of parasitic agents causing diarrhea in under-five children in Ilesa, Nigeria.
- To identify clinical correlates associated with parasitic diarrhea in this age group.
Main Methods:
- A cross-sectional study involving microscopic stool examination of 300 under-five children presenting with diarrhea.
- Comparison of clinical features between children with detected parasitic infections (cases) and those without (controls).
Main Results:
- Parasitic agents were identified in 23.3% of children with diarrhea, with protozoa (17.3%) being more prevalent than helminths (6%).
- Entamoeba histolytica was the most common protozoan (65.7%), followed by Giardia lamblia (7.1%).
- Children with parasitic diarrhea were significantly older, more malnourished (OR=2.04), and from lower socioeconomic classes (OR=7.15) compared to controls.
Conclusions:
- Parasitic infestations are a common cause of diarrhea in Nigerian children under five.
- Malnutrition and low socioeconomic status are identified as significant risk factors for parasitic diarrhea in this population.
Abstract:
The objective was to determine the prevalence of parasitic agents among under-five children with diarrhea in Ilesa, Nigeria and the clinical correlates of diarrhea associated with parasitic infestation. All under-five children presenting with diarrhea in the hospital had stool microscopic examination. Children with parasites in diarrheic stools (cases) were compared with those without (controls) for clinical features. Out of 300 under-five children with diarrhea, 70 (23.3%) had parasites. There were 18 (6%) helminthes and 52 (17.3%) protozoas. These included the' ova of Ascaris lumbricoides (13; 18.6%), cysts and trophozoites of Entamoeba. histolytica (46; 65.7%), cysts of Entamoeba coli (1; 1.4%), Giardia Lamblia (5; 7.1%), Necator american us (1; 1.4%) and Trichuris trichiuria (4; 5.7%). As against the controls, the cases were older (t = 4.88; p = 0:0000017), more undernourished (OR = 2.04; 95% CI = 1.14 to 3.63; p = 0.009) and belonged to the lower socio-economic classes (OR = 7.15; 95% CI = 3.83 to 13.43; p=0.0000). It is concluded that parasitic infestations are commonly associated with childhood diarrhoea in Nigeria. Malnutrition and low socio-economic status are risk factors.
Related Concept Videos
Giardiasis
Amebiasis
Bacterial Gastroenteritis
Fungal Phylum Microsporidia
Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents
Malaria
