Prevalence of intestinal parasitosis in schoolchildren

Moura, Erly Catarina de; Bragazza, Lucia M.; Coelho, Maria F. L.; Aun, Simone M. F.

doi:10.2223/jped.570

Cited by 5 publications

(5 citation statements)

References 6 publications

(11 reference statements)

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“…Such discrepancies in prevalence rates have been attributed to socioeconomic factors, poor hygiene and sanitary facilities, weather, climate and environmental factors. Several types of parasites most commonly affect children living under specific conditions [ 25 ]. For example, Ascaris lumbricoides infections seem to be more common in children living in households with lower incomes (prevalence ratio: 6.68, 95% CI: 1.01–44.34), while Giardia lamblia infections predominate in households with an unprotected water source (prevalence ratio: 1.95, 95% CI: 0.96–3.99) [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Intestinal Parasitic Infections among Children in Europe over the Last Five Years

et al. 2021

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While the prevalence of intestinal parasitic infections (IPI) has been most commonly studied in African and Asian populations, less is known about the prevalence rates of IPI in European children, as well as the potential risk factors that favor the spread of parasites. We aimed to review published evidence on the prevalence rates of IPI in children residing in Europe, and to quantitatively synthesize the results of published studies. We searched Medline from 1 January 2015 to 1 April 2021 to address the most recently published prevalence patterns of IPI in European children. Random-effects meta-analyses were performed by type of IPI infection, age group and sex, depending on data availability. Of the 967 potentially relevant articles, eight eligible cross-sectional studies were included in this analysis, yielding a sample of 3376 children (0–19 years). The overall prevalence rate was 5.9% for any IPI in children residing in European countries. Blastocystis hominis was the most commonly detected parasite yielding a prevalence rate of 10.7%. Other parasites included Entamoeba coli, Endolimax nana, and Blastocystis hominis. Studies focusing on specific types of parasites showed prevalence rates ranging from 1.3% for Cryptosporidium to 68.3% for Dientamoeba fragilis. Despite the scarce literature, the present review showed relatively low prevalence rates of IPI in Europe. Future studies accounting for proper diagnostic methods used for the detection of parasites and including information on potential sociodemographic factors, such as travelling history and history of immigration, are needed to guide clinicians about which children to test, as well as when and how to test children for IPI.

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Section: Discussionmentioning

confidence: 99%

Prevalence of Intestinal Parasitic Infections among Children in Europe over the Last Five Years

et al. 2021

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“…A recent study recognized the metropolitan region of Campinas as presenting the highest risk of Giardia infection among four densely populated regions of Sao Paulo State, Brazil [21] . Likewise, many clinical studies in the same region have reported Giardia infections among children at day-care centers [59] as well as the users of public health services [60] , [61] , and schools [62] and inhabitants of farms [63] . The great majority of studies only obtained data on the species level based on the morphology of the parasites.…”

Section: Discussionmentioning

confidence: 99%

Genetic Diversity of Giardia duodenalis: Multilocus Genotyping Reveals Zoonotic Potential between Clinical and Environmental Sources in a Metropolitan Region of Brazil

et al. 2014

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Background Giardia duodenalis is a flagellate protozoan that parasitizes humans and several other mammals. Protozoan contamination has been regularly documented at important environmental sites, although most of these studies were performed at the species level. There is a lack of studies that correlate environmental contamination and clinical infections in the same region. The aim of this study is to evaluate the genetic diversity of a set of clinical and environmental samples and to use the obtained data to characterize the genetic profile of the distribution of G. duodenalis and the potential for zoonotic transmission in a metropolitan region of Brazil.Methodology/Principal FindingsThe genetic assemblages and subtypes of G. duodenalis isolates obtained from hospitals, a veterinary clinic, a day-care center and important environmental sites were determined via multilocus sequence-based genotyping using three unlinked gene loci. Cysts of Giardia were detected at all of the environmental sites. Mixed assemblages were detected in 25% of the total samples, and an elevated number of haplotypes was identified. The main haplotypes were shared among the groups, and new subtypes were identified at all loci. Ten multilocus genotypes were identified: 7 for assemblage A and 3 for assemblage B.Conclusions/SignificanceThere is persistent G. duodenalis contamination at important environmental sites in the city. The identified mixed assemblages likely represent mixed infections, suggesting high endemicity of Giardia in these hosts. Most Giardia isolates obtained in this study displayed zoonotic potential. The high degree of genetic diversity in the isolates obtained from both clinical and environmental samples suggests that multiple sources of infection are likely responsible for the detected contamination events. The finding that many multilocus genotypes (MLGs) and haplotypes are shared by different groups suggests that these sources of infection may be related and indicates that there is a notable risk of human infection caused by Giardia in this region.

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“…Dünya genelinde 3,5 milyarın üzerinde bir kitle sindirim sistem parazitlerinin neden olduğu enfeksiyonlar açısından risk altındadır. İntestinal parazitler, özellikle küçük yaştaki çocukların sağlığını tehdit ederek asemptomatik invazyondan malnütrisyon, malabsorbsiyon, anemi, zeka ve gelişme geriliklerine kadar çok geniş yelpazede klinik tablolara yol açabilmektedir (1)(2)(3)(4)(5).…”

Section: Introductionunclassified

“…Sindirim sistem parazitlerinin toplumda görülme oranı; kalabalık, toplu olarak yaşanılan alanlarda, normal yaşam alanlarına göre daha yüksektir. Dolayısıyla yatılı okullar, çocuk yuvaları, kreşler, kışlalar gibi, insandan insana temasın çok fazla olduğu yerlerde daha sık rastlanılmaktadır (4)(5)(6)(7)(8)(9).…”

Section: Introductionunclassified

“…Temel sağlık ve temizlik alışkanlıklarının henüz tam olarak kazanılmadığı çocukluk döneminde, fiziksel koşulların yetersizliği de eklenirse E. vermicularis'in görülme sıklığı daha çok artmaktadır (2). Dünyada global bir dağılım gösteren E. vermicularis'in 500-900 milyon insanı enfekte ettiği bildirilmektedir (4,5,11,12). Türkiye'de yapılan çalışmalarda bölgesel farkların olduğu ve enterobiyazın giardiazis ile birlikte en sık görülen bağırsak paraziti enfeksiyonları arasında yer aldığı belirtilmektedir (13,14).…”

Section: Introductionunclassified

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The Prevalance of Enterobius vermicularis in Primary School Which Have Different Socioecomic Level in Ankara

Keskin

Bektaş²

2014

TurkiyeParazitolDerg

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Prevalence of intestinal parasitosis in schoolchildren

Cited by 5 publications

References 6 publications

Prevalence of Intestinal Parasitic Infections among Children in Europe over the Last Five Years

Prevalence of Intestinal Parasitic Infections among Children in Europe over the Last Five Years

Genetic Diversity of Giardia duodenalis: Multilocus Genotyping Reveals Zoonotic Potential between Clinical and Environmental Sources in a Metropolitan Region of Brazil

The Prevalance of Enterobius vermicularis in Primary School Which Have Different Socioecomic Level in Ankara

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