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Updated: Sep 29, 2025

Comparative Analysis of Automatic Fecal Analyzer versus Direct Wet Smear Microscopy for Detecting Parasitic Infections in Stool Samples
Published on: April 25, 2025
Screening for parasites in migrant children.
Jorge Bustamante1, Talía Sainz2, María Fátima Ara-Montojo3
1Department of Pediatrics and Infectious Diseases, Hospital Universitario Doctor José Molina Orosa, Las Palmas, Spain; La Paz Research Institute (IdiPAZ) Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain.
Parasitic infections are common in migrant children, with nearly 30% affected. Screening is crucial, as many children are asymptomatic, and African origin or eosinophilia are key risk factors.
Area of Science:
- Global health
- Pediatric infectious diseases
- Medical parasitology
Background:
- Globalization drives population movements, increasing the risk of imported diseases.
- Children, due to behavioral habits, face a higher risk of acquiring parasitic infections (parasitosis).
- Understanding the prevalence and risk factors of parasitosis in migrant children is crucial for public health.
Purpose of the Study:
- To determine the prevalence of parasitic infections in migrant children.
- To identify factors associated with parasitic diseases in this population.
Main Methods:
- A retrospective cross-sectional study was conducted from 2014 to 2018.
- Diagnosis of parasitosis was confirmed via serology and/or microscopic stool sample evaluation.
- Epidemiological and clinical data were systematically recorded for analysis.
Main Results:
- Out of 813 screened migrant children, 29.6% had at least one parasite, and 10.9% had multiple infections.
- Giardiasis, schistosomiasis, toxocariasis, and strongyloidiasis were the most prevalent parasitic diagnoses.
- African origin and the presence of eosinophilia were identified as significant risk factors for parasitism.
Conclusions:
- Parasitic infections are frequent among migrant children, often presenting asymptomatically.
- Active screening for parasitosis is recommended for high-risk populations, including migrant children.
- Eosinophilia and geographical origin can aid in identifying parasitic infections, but a normal eosinophil count does not rule out parasitosis.

