Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups

Detalhes bibliográficos
Autor(a) principal: Silva, Renata K N R
Data de Publicação: 2016
Outros Autores: Pacheco, Flávia Thamiris Figueiredo, Martins, Adson Santos, Menezes, Joelma Figueiredo, Ribeiro Junior, Hugo da Costa, Ribeiro, Tereza Cristina Medrado, Mattos, Ângela Peixoto de, Oliveira, Ricardo Riccio, Soares, Neci Matos, Teixeira, Márcia Cristina Aquino
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FIOCRUZ (ARCA)
Texto Completo: https://www.arca.fiocruz.br/handle/icict/16589
Resumo: Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB) (APR0228/2008), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq/MCT) and Universidade Federal da Bahia (UFBA), Brazil.
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spelling Silva, Renata K N RPacheco, Flávia Thamiris FigueiredoMartins, Adson SantosMenezes, Joelma FigueiredoRibeiro Junior, Hugo da CostaRibeiro, Tereza Cristina MedradoMattos, Ângela Peixoto deOliveira, Ricardo RiccioSoares, Neci MatosTeixeira, Márcia Cristina Aquino2016-12-28T12:59:48Z2016-12-28T12:59:48Z2016SILVA, R. K. N. R. et al. Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups. Parasitology International, v. 65, p. 635–640, 2016.1383-5769https://www.arca.fiocruz.br/handle/icict/1658910.1016/j.parint.2016.08.012Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB) (APR0228/2008), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq/MCT) and Universidade Federal da Bahia (UFBA), Brazil.Universidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, BrasilUniversidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, BrasilUniversidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, BrasilUniversidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, BrasilUniversidade Federal da Bahia. Centro Pediátrico Professor Hosannah de Oliveira. Salvador, BA, BrasilUniversidade Federal da Bahia. Centro Pediátrico Professor Hosannah de Oliveira. Salvador, BA, BrasilUniversidade Federal da Bahia. Centro Pediátrico Professor Hosannah de Oliveira. Salvador, BA, BrasilFundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, BrasilUniversidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, BrasilUniversidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, BrasilTechniques for Giardia diagnosis based on microscopy are usually applied as routine laboratory testing; however, they typically exhibit low sensitivity. This study aimed to evaluate Giardia duodenalis and other intestinal parasitic infections in different pediatric groups, with an emphasis on the comparison of Giardia diagnostic techniques. Feces from 824 children from different groups (diarrheic, malnourished, with cancer and from day care) were examined by microscopy and ELISA for Giardia, Cryptosporidium sp. and Entamoeba histolytica coproantigen detection. Giardia-positive samples from day-care children, identified by either microscopy or ELISA, were further tested by PCR targeting of the β-giardin and Gdh genes. Statistically significant differences (P<0.05) were observed when comparing the frequency of each protozoan among the groups. Giardia duodenalis was more frequent in day-care children and Cryptosporidium sp. in diarrheic and malnourished groups; infections by Entamoeba histolytica were found only in children with diarrhea. Considering positivity for Giardia by at least one method, ELISA was found to be more sensitive than microscopy (97% versus 55%). To examine discrepancies among the diagnostic methods, 71 Giardia-positive stool samples from day-care children were tested by PCR; of these, DNA was amplified from 51 samples (77.4%). Concordance of positivity between microscopy and ELISA was found for 48 samples, with 43 confirmed by PCR. Parasite DNA was amplified from eleven of the 20 Giardia samples (55%) identified only by ELISA. This study shows the higher sensitivity of ELISA over microscopy for Giardia diagnosis when a single sample is analyzed and emphasizes the need for methods based on coproantigen detection to identify this parasite in diarrheic fecal samples.engElsevierGiardia duodenalisCriançasDiagnósticoELISAMicroscopiaPCRGiardia duodenalisChildrenDiagnosisELISAMicroscopyPCRPerformance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groupsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FIOCRUZ (ARCA)instname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZLICENSElicense.txtlicense.txttext/plain; charset=utf-82991https://www.arca.fiocruz.br/bitstream/icict/16589/1/license.txt5a560609d32a3863062d77ff32785d58MD51ORIGINALSilva RKNR Performance of microscopy....pdfSilva RKNR Performance of 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dc.title.pt_BR.fl_str_mv Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
title Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
spellingShingle Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
Silva, Renata K N R
Giardia duodenalis
Crianças
Diagnóstico
ELISA
Microscopia
PCR
Giardia duodenalis
Children
Diagnosis
ELISA
Microscopy
PCR
title_short Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
title_full Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
title_fullStr Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
title_full_unstemmed Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
title_sort Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups
author Silva, Renata K N R
author_facet Silva, Renata K N R
Pacheco, Flávia Thamiris Figueiredo
Martins, Adson Santos
Menezes, Joelma Figueiredo
Ribeiro Junior, Hugo da Costa
Ribeiro, Tereza Cristina Medrado
Mattos, Ângela Peixoto de
Oliveira, Ricardo Riccio
Soares, Neci Matos
Teixeira, Márcia Cristina Aquino
author_role author
author2 Pacheco, Flávia Thamiris Figueiredo
Martins, Adson Santos
Menezes, Joelma Figueiredo
Ribeiro Junior, Hugo da Costa
Ribeiro, Tereza Cristina Medrado
Mattos, Ângela Peixoto de
Oliveira, Ricardo Riccio
Soares, Neci Matos
Teixeira, Márcia Cristina Aquino
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Renata K N R
Pacheco, Flávia Thamiris Figueiredo
Martins, Adson Santos
Menezes, Joelma Figueiredo
Ribeiro Junior, Hugo da Costa
Ribeiro, Tereza Cristina Medrado
Mattos, Ângela Peixoto de
Oliveira, Ricardo Riccio
Soares, Neci Matos
Teixeira, Márcia Cristina Aquino
dc.subject.other.pt_BR.fl_str_mv Giardia duodenalis
Crianças
Diagnóstico
ELISA
Microscopia
PCR
topic Giardia duodenalis
Crianças
Diagnóstico
ELISA
Microscopia
PCR
Giardia duodenalis
Children
Diagnosis
ELISA
Microscopy
PCR
dc.subject.en.pt_BR.fl_str_mv Giardia duodenalis
Children
Diagnosis
ELISA
Microscopy
PCR
description Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB) (APR0228/2008), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq/MCT) and Universidade Federal da Bahia (UFBA), Brazil.
publishDate 2016
dc.date.accessioned.fl_str_mv 2016-12-28T12:59:48Z
dc.date.available.fl_str_mv 2016-12-28T12:59:48Z
dc.date.issued.fl_str_mv 2016
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.citation.fl_str_mv SILVA, R. K. N. R. et al. Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups. Parasitology International, v. 65, p. 635–640, 2016.
dc.identifier.uri.fl_str_mv https://www.arca.fiocruz.br/handle/icict/16589
dc.identifier.issn.pt_BR.fl_str_mv 1383-5769
dc.identifier.doi.none.fl_str_mv 10.1016/j.parint.2016.08.012
identifier_str_mv SILVA, R. K. N. R. et al. Performance of microscopy and ELISA for diagnosing Giardia duodenalis infection in different pediatric groups. Parasitology International, v. 65, p. 635–640, 2016.
1383-5769
10.1016/j.parint.2016.08.012
url https://www.arca.fiocruz.br/handle/icict/16589
dc.language.iso.fl_str_mv eng
language eng
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dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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