Evidence map›Paper›PMID 26974335›Full record

ArticlePLoS neglected tropical diseases2016

Prevalence and Risk Factors for Intestinal Protozoan Infections with Cryptosporidium, Giardia, Blastocystis and Dientamoeba among Schoolchildren in Tripoli, Lebanon.

Marwan Osman, Dima El Safadi, Amandine Cian, Sadia Benamrouz, Céline Nourrisson, Philippe Poirier, Bruno Pereira, Romy Razakandrainibe, Anthony Pinon, Céline Lambert and 7 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 97 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed, 3 pooled it
17.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

97 citing papers in PubMed, 3 syntheses or guidelines pooled it, 180 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
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  14. Pathogens (Basel, Switzerland) · 2024
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  18. The opportunistic protist,Emerging microbes & infections · 2023
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37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 10 institutions in 2 countries.

Marwan OsmanInstitut Pasteur de Lille, Centre d’Infection et d’Immunitè de Lille (CIIL), UMR CNRS 8204, Inserm U1019, Université de Lille, Biologie et Diversitè des Pathogènes Eucaryotes Emergents (BDPEE), Lille, France.
Dima El SafadiInstitute Pasteur de Lille, Centre d'Infection et d'Immunitè de Lille (CIIL), UMR CNRS 8204, Inserm U1019, Université de Lille, Biologie et Diversitè des Pathogènes Eucaryotes Emergents (BDPEE), Lille, France.
Amandine CianInstitute Pasteur de Lille, Centre d'Infection et d'Immunitè de Lille (CIIL), UMR CNRS 8204, Inserm U1019, Université de Lille, Biologie et Diversitè des Pathogènes Eucaryotes Emergents (BDPEE), Lille, France.
Sadia BenamrouzInstitute Pasteur de Lille, Centre d'Infection et d'Immunitè de Lille (CIIL), UMR CNRS 8204, Inserm U1019, Université de Lille, Biologie et Diversitè des Pathogènes Eucaryotes Emergents (BDPEE), Lille, France.
Céline NourrissonClermont Université, Université Blaise Pascal-Université d'Auvergne-CNRS, UMR 6023 Laboratoire Microorganismes: Génome et Environnement, Clermont-Ferrand, France.
Philippe PoirierClermont Université, Université Blaise Pascal-Université d'Auvergne-CNRS, UMR 6023 Laboratoire Microorganismes: Génome et Environnement, Clermont-Ferrand, France.
Bruno PereiraCHU Clermont-Ferrand, Unité de Biostatistiques, Direction de la Recherche Clinique, Clermont-Ferrand, France.
Romy RazakandrainibeEA 3800, Université de Rouen & Centre Hospitalier Universitaire Charles Nicolle, Rouen, France.
Anthony PinonInstitute Pasteur de Lille, Unité de Sécurité Microbiologique, Lille, France.
Céline LambertCHU Clermont-Ferrand, Unité de Biostatistiques, Direction de la Recherche Clinique, Clermont-Ferrand, France.
Ivan WawrzyniakClermont Université, Université Blaise Pascal-Université d'Auvergne-CNRS, UMR 6023 Laboratoire Microorganismes: Génome et Environnement, Clermont-Ferrand, France.
Fouad DabboussiCentre AZM pour la recherche en biotechnologies et ses applications, Universitè Libanaise, Laboratoire de Microbiologie Santè et Environnement (LMSE), Tripoli, Lebanon.
Frederic DelbacClermont Université, Université Blaise Pascal-Université d'Auvergne-CNRS, UMR 6023 Laboratoire Microorganismes: Génome et Environnement, Clermont-Ferrand, France.
Loïc FavennecEA 3800, Université de Rouen & Centre Hospitalier Universitaire Charles Nicolle, Rouen, France.
Monzer HamzeCentre AZM pour la recherche en biotechnologies et ses applications, Universitè Libanaise, Laboratoire de Microbiologie Santè et Environnement (LMSE), Tripoli, Lebanon.
Eric ViscogliosiInstitute Pasteur de Lille, Centre d'Infection et d'Immunitè de Lille (CIIL), UMR CNRS 8204, Inserm U1019, Université de Lille, Biologie et Diversitè des Pathogènes Eucaryotes Emergents (BDPEE), Lille, France.
Gabriela CertadInstitute Pasteur de Lille, Centre d'Infection et d'Immunitè de Lille (CIIL), UMR CNRS 8204, Inserm U1019, Université de Lille, Biologie et Diversitè des Pathogènes Eucaryotes Emergents (BDPEE), Lille, France.
Center for Infection and Immunity of Lille · FRCentre Hospitalier Universitaire de Clermont-Ferrand · FRLaboratoire Microorganismes Génome et Environnement · FRLebanese University · LBUniversité de Lille · FRUniversité de Rouen Normandie · FRCentre National de la Recherche Scientifique · FRClermont Université · FRInstitut Pasteur de Lille · FRUniversité Catholique de Lille · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntestinal protozoan infections are confirmed as major causes of diarrhea, particularly in children, and represent a significant, but often neglected, threat to public health. No recent data were available in Lebanon concerning the molecular epidemiology of protozoan infections in children, a vulnerable population at high risk of infection. METHODOLOGY AND PRINCIPAL

findingsIn order to improve our understanding of the epidemiology of intestinal pathogenic protozoa, a cross-sectional study was conducted in a general pediatric population including both symptomatic and asymptomatic subjects. After obtaining informed consent from the parents or legal guardians, stool samples were collected in January 2013 from 249 children in 2 schools in Tripoli, Lebanon. Information obtained from a standard questionnaire included demographic characteristics, current symptoms, socioeconomic status, source of drinking water, and personal hygiene habits. After fecal examination by both microscopy and molecular tools, the overall prevalence of parasitic infections was recorded as 85%. Blastocystis spp. presented the highest infection rate (63%), followed by Dientamoeba fragilis (60.6%), Giardia duodenalis (28.5%) and Cryptosporidium spp. (10.4%). PCR was also performed to identify species and genotypes of Cryptosporidium, subtypes of Blastocystis, and assemblages of Giardia. Statistical analysis using a logistic regression model showed that contact with family members presenting gastrointestinal disorders was the primary risk factor for transmission of these protozoa.

conclusionsThis is the first study performed in Lebanon reporting the prevalence and the clinical and molecular epidemiological data associated with intestinal protozoan infections among schoolchildren in Tripoli. A high prevalence of protozoan parasites was found, with Blastocystis spp. being the most predominant protozoans. Although only 50% of children reported digestive symptoms, asymptomatic infection was observed, and these children may act as unidentified carriers. This survey provides necessary information for designing prevention and control strategies to reduce the burden of these protozoan infections, especially in children.

Indexed as

AdolescentAnimalsChildChild, PreschoolCross-Sectional StudiesFecesFemaleHumansIntestinal Diseases, ParasiticLebanonMaleMolecular Sequence DataParasitesPolymerase Chain ReactionPrevalenceProtozoan Infections

Identifiers

PMID26974335
PMCPMC4790957
OpenAlexW2301663025

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.