A survey of intestinal parasites including associated risk factors in humans in Panama

Sandoval, Nidia; Ríos, Nivia; Mena, Alberto; Fernández, Rigoberto; Perea, Milixa; Manzano-Román, Raúl; Santa-Quiteria, José A. Ruiz; Hernández-González, Ana; Siles-Lucas, Mar

doi:10.1016/j.actatropica.2015.03.024

Cited by 13 publications

(14 citation statements)

References 24 publications

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“…Studies including the general population can analyze the interplay between poverty, age and parasitism. This study corroborates findings of G. intestinalis among children 13 , 29 . Kiani et al 31 detected an inverse relationship between IPIs and age; however, in their study the role of age as a predictor for IPIs may have been confounded by employment, as detected with E. nana in this study.…”

Section: Discussionsupporting

confidence: 91%

“…To our knowledge, this is the first epidemiological study on IPIs conducted in this large urban center. Current public policies and international guidelines related to IPIs focus almost exclusively on soil transmitted helminths (STH) 10 - 12 , however, many recent studies have found a shift in community profiles of IPIs from a predominance of STH to protozoans 13 - 16 . Therefore, this cross-sectional study, following the Strengthening the Reporting of Observational Studies in Epidemiology Guidelines (STROBE), assessed the socioenvironmental conditions and prevalence of IPIs in slums of Rio de Janeiro, RJ State, Brazil.…”

Section: Introductionmentioning

confidence: 99%

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Socioenvironmental conditions and intestinal parasitic infections in Brazilian urban slums: a cross-sectional study

Ignacio

Silva

Handam

et al. 2017

Rev. Inst. Med. trop. S. Paulo

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Intestinal parasitic infections (IPIs) are neglected diseases with limited data regarding prevalence in Brazil and many other countries. In increasingly urban societies, investigating the profile and socioenvironmental determinants of IPIs in the general population of slum dwellers is necessary for establishing appropriate public policies catered to these environments. This study assessed the socioenvironmental conditions and prevalence of IPIs in slums of Rio de Janeiro, RJ State, Brazil.MethodsA cross-sectional study covering an agglomeration of urban slums was conducted between 2015 and 2016 using participants observation, a socioeconomic survey, and the spontaneous sedimentation method with three slides per sample to analyze fresh stool specimens ( n =595) searching for intestinal parasites.Results Endolimax nana ( n =95, 16.0%) and Entamoeba coli ( n =65, 10.9%) were the most frequently identified agents, followed by Giardia intestinalis ( n =24, 4.0%) and Ascaris lumbricoides ( n =11, 1.8%). Coinfections caused by E. nana and E. histolytica/dispar and by Entamoeba coli/A. lumbricoides were significant. The use of piped water as drinking water, the presence of A. lumbricoides , and contamination with coliform bacteria and Escherichia coli were more common in major area (MA) 1. Children (0-19 years) had a greater chance of living in poverty (OR 3.36; 95% CI: 2.50- 4.52; p <0.001) which was pervasive. The predominance of protozoa parasites suggests that a one-size-fits-all approach focusing on preventive chemotherapy for soil-transmitted helminths is not appropriate for all communities in developing countries. It is important that both residents and health professionals consider the socioenvironmental conditions of urban slums when assessing intestinal parasitic infections for disease control and health promotion initiatives.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Socioenvironmental conditions and intestinal parasitic infections in Brazilian urban slums: a cross-sectional study

Ignacio

Silva

Handam

et al. 2017

Rev. Inst. Med. trop. S. Paulo

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“…Continued exposure to these factors is important for maximizing the parasitic burden and, therefore, the development of intestinal parasites. It is worth noting that the very same conditions are predisposing factors of polyparasitism [3,5,17], as observed in our study.…”

Section: Discussionsupporting

confidence: 87%

“…In addition, risk factors for the development of enteroparasitosis include contact with residues of different natures and water contaminated with human faeces, inadequate housing conditions, poor hygiene practices, low education, and family income [3,5]. Continued exposure to these factors is important for maximizing the parasitic burden and, therefore, the development of intestinal parasites.…”

Section: Discussionmentioning

confidence: 99%

“…In this context, Brazil stands out, given the lack of public policies for better coverage of basic sanitation in this country [1,2]. In addition, it is known that both the transmission and growing number of cases are also related to eating habits, as well as cultural and educational behaviours, as parasitic infections are more prevalent in populations of low socioeconomic status [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Intestinal protozoan infections and environment conditions among rural schoolchildren in Western Brazilian Amazon

Balbino

Filho

Farias

et al. 2020

Preprint

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Objective This study sought to analyse the occurrence of intestinal parasites in schoolchildren from rural areas in Rio Branco, State of Acre, Western Brazilian Amazon. Results The proportion of children tested positive for intestinal parasites in this study was 91.48%, of which all of them had protozoan infections. About 65.96% of the students were characterised by a polyparasitism state. Among the parasites found, Endolimax nana, Blastocystis sp., and Giardia duodenalis were the most prevalent in the positive samples. The proportions observed between sociodemographic and environment conditions data and positive diagnosis did not show significant statistical.

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Investigation of intestinal parasites by conventional and molecular methods in children with gastrointestinal system complaints

Özkan-Ahmetoğlu¹,

Demirel

Taşar³

et al. 2023

Parasitol Res

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Background and aims:Intestinal parasitic infections are a global health problem that causes morbidity and mortality, especially in children living in rural areas. In this study, stool samples of pediatric patients with gastrointestinal complaints were examined by conventional and molecular methods to determine the prevalence of intestinal parasites. Methods:A total of 100 pediatric patients with gastrointestinal complaints and 50 healthy children were included in the study. Stool samples were collected from each child and examined by direct microscopic examination (native-Lugol method), formol-ethyl acetate concentration technique, Kinyoun's acid-fast staining, and Wheatley trichrome staining methods. Real-time PCR was used for the detection of Blastocystis sp. and D. fragilisin the stool samples. Sanger sequencing was used to identify Blastocystissp. subtypes. Results:One or more intestinal parasites were found in 12% (n=100) of the patient group and 1% (n=50) of the control group using conventional techniques. By using real-time PCR, Blastocystis sp. was discovered in 14% (14/100) of the patient group and 4% (4/50) of the control group. There was no signi cant difference in the frequency of Blastocystis sp. between the two groups. The most prevalent Blastocystissubtype was ST1 and the most frequent allele was a2 among the samples successfully ampli ed and sequenced. D. fragilis was detected in 17% (17/100) of the patient group and 8% (4/50) of the control group by real-time PCR. The prevalence of D. fragiliswas not signi cantly different between the patient and control groups, as well. Conclusions:Blastocystis sp. and D. fragilis were found in high prevalence in pediatric patients with gastrointestinal complaints in this study. Although the role of these protists as a pathogen in humans is still controversial, it is supposed to the presence of the parasites are associated with gastrointestinal disorders such as diarrhea, abdominal pain, nausea, and vomiting. More case-control studies are needed to understand the pathogenic or commensal role of these parasites on the intestinal microbiota, especially in both patients with gastrointestinal disorders and healthy individuals.

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A survey of intestinal parasites including associated risk factors in humans in Panama

Cited by 13 publications

References 24 publications

Socioenvironmental conditions and intestinal parasitic infections in Brazilian urban slums: a cross-sectional study

Socioenvironmental conditions and intestinal parasitic infections in Brazilian urban slums: a cross-sectional study

Intestinal protozoan infections and environment conditions among rural schoolchildren in Western Brazilian Amazon

Investigation of intestinal parasites by conventional and molecular methods in children with gastrointestinal system complaints

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