ArticleBMC infectious diseases2019
Molecular and descriptive epidemiology of intestinal protozoan parasites of children and their pets in Cauca, Colombia: a cross-sectional study.
Article in BMC infectious diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.
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Who cites it
48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 84 citations in OpenAlex.
- Current global status, subtype distribution and zoonotic significance of Blastocystis in dogs and cats: a systematic review and meta-analysis.Parasites & vectors · 2022Pooled it
- Prevalence of human cryptosporidiosis in the Americas: systematic review and meta-analysis.Revista do Instituto de Medicina Tropical de Sao Paulo · 2022Pooled it
- Assessment of water quality and microbial contamination in Santa Marta's major rivers using conventional methods and next-generation sequencing.Environmental science and pollution research international · 2026Article
- The triple threat of Cryptosporidium, Giardia, and Entamoeba infections in Nigerian children.Scientific reports · 2026Article
- Polyparasitic Infections: Associated Factors and Effect on the Haemoglobin Level of Children Living in Lambaréné Remote and Surrounding Rural Areas from Gabon-A Cross-Sectional Study.Tropical medicine and infectious disease · 2025Article
- Genotypic characterization ofFood and waterborne parasitology · 2025Article
- Impact of Blastocystis carriage and colonization intensity on gut microbiota composition in a non-westernized rural population from Colombia.PLoS neglected tropical diseases · 2025Article
- A cross - sectional investigation on the molecular infection rate and subtype distribution ofFrontiers in cellular and infection microbiology · 2025Article
- Assessment of enteric helminth parasites in bushmeat in Ghana.International journal for parasitology. Parasites and wildlife · 2024Article
- Comparison of DNA quantity and quality from fecal samples of mammals transported in ethanol or lysis buffer.One health (Amsterdam, Netherlands) · 2024Article
- Subtype-host patterns and genetic differentiation ofHeliyon · 2024Article
- Host-specificParasitology · 2024Article
- Evaluation of the Use of Singleplex and Duplex CerTest VIASURE Real-Time PCR Assays to Detect Common Intestinal Protist Parasites.Diagnostics (Basel, Switzerland) · 2024Article
- Molecular Prevalence and Subtypes Distribution ofTropical medicine and infectious disease · 2024Review
- Prevalence of occult hepatitis B infection among treatment-naive persons living with HIV in Ghana.PloS one · 2024Article
- Molecular detection and characterization ofInternational journal for parasitology. Parasites and wildlife · 2023Article
- Epidemiology of giardiasis and assemblages A and B and effects on diarrhea and growth trajectories during the first 8 years of life: Analysis of a birth cohort in a rural district in tropical Ecuador.PLoS neglected tropical diseases · 2023Article
- Epidemiology ofPathogens (Basel, Switzerland) · 2023Review
- Exploring Blastocystis genetic diversity in rural schoolchildren from Colombia using next-generation amplicon sequencing reveals significant associations between contact with animals and infection risk.Parasitology research · 2023Article
- Circulation and colonisation ofEpidemiology and infection · 2023Article
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundParasitic infections, particularly those caused by protozoa, represent a considerable public health problem in developing countries. Blastocystis, Giardia duodenalis, Cryptosporidium spp. and the Entamoeba complex (Entamoeba histolytica, Entamoeba dispar and Entamoeba moshkovskii) are the most common etiological causes of intestinal parasitic infections.
methodsWe carried out a descriptive cross-sectional study in school-age children attending a daycare institution in commune eight of Popayán, Cauca (Southwest Colombia). A total of 266 fecal samples were collected (258 from children and eight from pets). Blastocystis, G. duodenalis, Cryptosporidium spp. and the Entamoeba complex were identified by microscopy, quantitative real-time PCR (qPCR) and conventional PCR. The concordance of qPCR and microscopy was assessed using the Kappa index. Molecular characterization was conducted to identify Blastocystis subtypes (18S), G. duodenalis assemblages (tpi and gdh) and Cryptosporidium species/subtypes (18S and GP60). Potential associations between intestinal parasitism and sociodemographic factors were examined using bivariate analyses.
resultsA total of 258 fecal samples from children were analyzed by microscopy and 255 samples were analyzed by qPCR. The prevalence of Blastocystis was between 25.19% (microscopy) and 39.22% (qPCR), that of G. duodenalis was between 8.14% (microscopy) and 10.59% (qPCR), that of Cryptosporidium spp. was estimated at 9.8% (qPCR), and that of the Entamoeba complex was between 0.39% (conventional PCR) and 0.78% (microscopy). The concordance between microscopy and qPCR was very low. Blastocystis ST1 (alleles 4, 8, and 80), ST2 (alleles 11, 12, and 15), ST3 (alleles 31, 34, 36, 38,57, and 151), and ST4 (alleles 42 and 91), G. duodenalis assemblages AII, BIII, BIV and D, C. parvum subtype IIa and C. hominis subtype IbA9G3R2 were identified. The only identified member of the Entamoeba complex corresponded to E. histolytica. No statistically significant association was identified between parasitic infection and any sociodemographic variable.
conclusionThis study revealed the usefulness of molecular methods to depict the transmission dynamics of parasitic protozoa in southwest Colombia. The presence of some of these protozoa in domestic animals may be involved in their transmission.
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