Geospatial distribution of intestinal parasitic infections in Rio de Janeiro (Brazil) and its association with social determinants
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
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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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 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1935-2735 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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