Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants

Detalhes bibliográficos
Autor(a) principal: Faria, Clarissa Perez
Data de Publicação: 2017
Outros Autores: Zanini, Graziela Maria, Dias, Gisele Silva, da Silva, Sidnei, de Freitas, Marcelo Bessa, Almendra, Ricardo, Santana, Paula, Sousa, Maria do Céu
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/108313
https://doi.org/10.1371/journal.pntd.0005445
Resumo: Background Intestinal parasitic infections remain among the most common infectious diseases worldwide. This study aimed to estimate their prevalence and provide a detailed analysis of geographical distribution of intestinal parasites in the metropolitan region of Rio de Janeiro, considering demographic, socio-economic, and epidemiological contextual factors. Methods/Principal findings The cross-section survey was conducted among individuals attending the Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ, RJ) during the period from April 2012 to February 2015. Stool samples were collected and processed by sedimentation, flotation, Kato-Katz, Baermann-Moraes and Graham methods, iron haematoxylin staining and safranin staining. Of the 3245 individuals analysed, 569 (17.5%) were infected with at least one parasite. The most common protozoa were Endolimax nana (28.8%), Entamoeba coli (14.8%), Complex Entamoeba histolytica/Entamoeba dispar (13.5%), Blastocystis hominis (12.7%), and Giardia lamblia (8.1%). Strongyloides stercoralis (4.3%), Schistosoma mansoni (3.3%), Ascaris lumbricoides (1.6%), and hookworms (1.5%) were the most frequent helminths. There was a high frequency of contamination by protozoa (87%), and multiple infections were observed in 141 participants (24.8%). A positive association between age (young children) and gender (male) with intestinal parasites was observed. Geospatial distribution of the detected intestinal parasitic infections was not random or homogeneous, but was influenced by socioeconomic conditions (through the material deprivation index (MDI)). Participants classified in the highest levels of deprivation had higher risk of having intestinal parasites. Conclusions/Significance This study provides the first epidemiological information on the prevalence and distribution of intestinal parasitic infections in the Rio de Janeiro metropolitan area. Intestinal parasites, especially protozoa, are highly prevalent, indicating that parasitic infections are still a serious public health problem. MDI showed that intestinal parasites were strongly associated with the socioeconomic status of the population, thus making it possible to identify social vulnerable areas.
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spelling Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinantsAdolescentAdultAgedAged, 80 and overAnimalsBrazilChildChild, PreschoolClinical Laboratory TechniquesCross-Sectional StudiesDemographyFecesFemaleHumansInfantInfant, NewbornIntestinal Diseases, ParasiticMaleMiddle AgedParasitesPrevalenceSpatial AnalysisYoung AdultSocioeconomic FactorsTopography, MedicalBackground Intestinal parasitic infections remain among the most common infectious diseases worldwide. This study aimed to estimate their prevalence and provide a detailed analysis of geographical distribution of intestinal parasites in the metropolitan region of Rio de Janeiro, considering demographic, socio-economic, and epidemiological contextual factors. Methods/Principal findings The cross-section survey was conducted among individuals attending the Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ, RJ) during the period from April 2012 to February 2015. Stool samples were collected and processed by sedimentation, flotation, Kato-Katz, Baermann-Moraes and Graham methods, iron haematoxylin staining and safranin staining. Of the 3245 individuals analysed, 569 (17.5%) were infected with at least one parasite. The most common protozoa were Endolimax nana (28.8%), Entamoeba coli (14.8%), Complex Entamoeba histolytica/Entamoeba dispar (13.5%), Blastocystis hominis (12.7%), and Giardia lamblia (8.1%). Strongyloides stercoralis (4.3%), Schistosoma mansoni (3.3%), Ascaris lumbricoides (1.6%), and hookworms (1.5%) were the most frequent helminths. There was a high frequency of contamination by protozoa (87%), and multiple infections were observed in 141 participants (24.8%). A positive association between age (young children) and gender (male) with intestinal parasites was observed. Geospatial distribution of the detected intestinal parasitic infections was not random or homogeneous, but was influenced by socioeconomic conditions (through the material deprivation index (MDI)). Participants classified in the highest levels of deprivation had higher risk of having intestinal parasites. Conclusions/Significance This study provides the first epidemiological information on the prevalence and distribution of intestinal parasitic infections in the Rio de Janeiro metropolitan area. Intestinal parasites, especially protozoa, are highly prevalent, indicating that parasitic infections are still a serious public health problem. MDI showed that intestinal parasites were strongly associated with the socioeconomic status of the population, thus making it possible to identify social vulnerable areas.Public Library of Science2017-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/108313http://hdl.handle.net/10316/108313https://doi.org/10.1371/journal.pntd.0005445eng1935-2735Faria, Clarissa PerezZanini, Graziela MariaDias, Gisele Silvada Silva, Sidneide Freitas, Marcelo BessaAlmendra, RicardoSantana, PaulaSousa, Maria do Céuinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-24T08:38:37Zoai:estudogeral.uc.pt:10316/108313Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:24:36.996055Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
title Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
spellingShingle Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
Faria, Clarissa Perez
Adolescent
Adult
Aged
Aged, 80 and over
Animals
Brazil
Child
Child, Preschool
Clinical Laboratory Techniques
Cross-Sectional Studies
Demography
Feces
Female
Humans
Infant
Infant, Newborn
Intestinal Diseases, Parasitic
Male
Middle Aged
Parasites
Prevalence
Spatial Analysis
Young Adult
Socioeconomic Factors
Topography, Medical
title_short Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
title_full Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
title_fullStr Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
title_full_unstemmed Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
title_sort Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
author Faria, Clarissa Perez
author_facet Faria, Clarissa Perez
Zanini, Graziela Maria
Dias, Gisele Silva
da Silva, Sidnei
de Freitas, Marcelo Bessa
Almendra, Ricardo
Santana, Paula
Sousa, Maria do Céu
author_role author
author2 Zanini, Graziela Maria
Dias, Gisele Silva
da Silva, Sidnei
de Freitas, Marcelo Bessa
Almendra, Ricardo
Santana, Paula
Sousa, Maria do Céu
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Faria, Clarissa Perez
Zanini, Graziela Maria
Dias, Gisele Silva
da Silva, Sidnei
de Freitas, Marcelo Bessa
Almendra, Ricardo
Santana, Paula
Sousa, Maria do Céu
dc.subject.por.fl_str_mv Adolescent
Adult
Aged
Aged, 80 and over
Animals
Brazil
Child
Child, Preschool
Clinical Laboratory Techniques
Cross-Sectional Studies
Demography
Feces
Female
Humans
Infant
Infant, Newborn
Intestinal Diseases, Parasitic
Male
Middle Aged
Parasites
Prevalence
Spatial Analysis
Young Adult
Socioeconomic Factors
Topography, Medical
topic Adolescent
Adult
Aged
Aged, 80 and over
Animals
Brazil
Child
Child, Preschool
Clinical Laboratory Techniques
Cross-Sectional Studies
Demography
Feces
Female
Humans
Infant
Infant, Newborn
Intestinal Diseases, Parasitic
Male
Middle Aged
Parasites
Prevalence
Spatial Analysis
Young Adult
Socioeconomic Factors
Topography, Medical
description Background Intestinal parasitic infections remain among the most common infectious diseases worldwide. This study aimed to estimate their prevalence and provide a detailed analysis of geographical distribution of intestinal parasites in the metropolitan region of Rio de Janeiro, considering demographic, socio-economic, and epidemiological contextual factors. Methods/Principal findings The cross-section survey was conducted among individuals attending the Evandro Chagas National Institute of Infectious Diseases (FIOCRUZ, RJ) during the period from April 2012 to February 2015. Stool samples were collected and processed by sedimentation, flotation, Kato-Katz, Baermann-Moraes and Graham methods, iron haematoxylin staining and safranin staining. Of the 3245 individuals analysed, 569 (17.5%) were infected with at least one parasite. The most common protozoa were Endolimax nana (28.8%), Entamoeba coli (14.8%), Complex Entamoeba histolytica/Entamoeba dispar (13.5%), Blastocystis hominis (12.7%), and Giardia lamblia (8.1%). Strongyloides stercoralis (4.3%), Schistosoma mansoni (3.3%), Ascaris lumbricoides (1.6%), and hookworms (1.5%) were the most frequent helminths. There was a high frequency of contamination by protozoa (87%), and multiple infections were observed in 141 participants (24.8%). A positive association between age (young children) and gender (male) with intestinal parasites was observed. Geospatial distribution of the detected intestinal parasitic infections was not random or homogeneous, but was influenced by socioeconomic conditions (through the material deprivation index (MDI)). Participants classified in the highest levels of deprivation had higher risk of having intestinal parasites. Conclusions/Significance This study provides the first epidemiological information on the prevalence and distribution of intestinal parasitic infections in the Rio de Janeiro metropolitan area. Intestinal parasites, especially protozoa, are highly prevalent, indicating that parasitic infections are still a serious public health problem. MDI showed that intestinal parasites were strongly associated with the socioeconomic status of the population, thus making it possible to identify social vulnerable areas.
publishDate 2017
dc.date.none.fl_str_mv 2017-03
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/108313
http://hdl.handle.net/10316/108313
https://doi.org/10.1371/journal.pntd.0005445
url http://hdl.handle.net/10316/108313
https://doi.org/10.1371/journal.pntd.0005445
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dc.relation.none.fl_str_mv 1935-2735
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publisher.none.fl_str_mv Public Library of Science
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