Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening

Detalhes bibliográficos
Autor(a) principal: Neto, Eurico Camargo
Data de Publicação: 2010
Outros Autores: Amorim, Fabiana, Lago, Eleonor Gastal
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Medica (Porto Alegre. Online)
Texto Completo: https://revistaseletronicas.pucrs.br/scientiamedica/article/view/5983
Resumo: AIMS: To determine the prevalence of congenital toxoplasmosis in Brazil from samples of dried blood on filter paper from neonates attended by a private program of neonatal screening. METHODS: Blood samples collected from neonates by puncturing the heel and dried on filter paper, received from all Brazilian states from September 1995 to July 2009, were tested for Toxoplasma gondii-specific IgM antibodies. For each positive screening test, confirmatory tests were performed in sera of mothers and newborns, obtained by venipuncture. The infants were monitored and classified as infected according to one of the following criteria: presence of Toxoplasma gondii specific IgM and IgG in the newborn and the mother; Toxoplasma gondii-specific IgM and IgG in the newborn only; Toxoplasma gondii-specific IgM and IgG in the mother only; or increasing amount of Toxoplasma gondii-specific IgG in the infant. RESULTS: A total of 800,164 blood samples were tested. The overall prevalence of congenital toxoplasmosis was found to be 1/1,613 (6/10,000) in the country, ranging from 1/5,447 to 1/495 (2/10,000 to 20/10,000) in different states. CONCLUSIONS: Neonatal screening on a large scale is an important tool for determining the prevalence of congenital toxoplasmosis. The high prevalence of the infection in Brazil and the wide variability of its epidemiology among the states support the need to develop policies on health and education to prevent and control congenital toxoplasmosis across the country, respecting the peculiarities of each state.
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spelling Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screeningEstimativa da distribuição regional da toxoplasmose congênita no Brasil a partir dos resultados de triagem neonatalTOXOPLASMOSISCONGENITAL/prevention & controlAIMS: To determine the prevalence of congenital toxoplasmosis in Brazil from samples of dried blood on filter paper from neonates attended by a private program of neonatal screening. METHODS: Blood samples collected from neonates by puncturing the heel and dried on filter paper, received from all Brazilian states from September 1995 to July 2009, were tested for Toxoplasma gondii-specific IgM antibodies. For each positive screening test, confirmatory tests were performed in sera of mothers and newborns, obtained by venipuncture. The infants were monitored and classified as infected according to one of the following criteria: presence of Toxoplasma gondii specific IgM and IgG in the newborn and the mother; Toxoplasma gondii-specific IgM and IgG in the newborn only; Toxoplasma gondii-specific IgM and IgG in the mother only; or increasing amount of Toxoplasma gondii-specific IgG in the infant. RESULTS: A total of 800,164 blood samples were tested. The overall prevalence of congenital toxoplasmosis was found to be 1/1,613 (6/10,000) in the country, ranging from 1/5,447 to 1/495 (2/10,000 to 20/10,000) in different states. CONCLUSIONS: Neonatal screening on a large scale is an important tool for determining the prevalence of congenital toxoplasmosis. The high prevalence of the infection in Brazil and the wide variability of its epidemiology among the states support the need to develop policies on health and education to prevent and control congenital toxoplasmosis across the country, respecting the peculiarities of each state.OBJETIVO: estimar a prevalência da toxoplasmose congênita Brasil por meio de amostras de sangue seco em papel filtro, obtidas de neonatos atendidos por um programa privado de triagem neonatal. MÉTODOS: amostras de sangue coletadas de neonatos por punção de calcâneo e absorvidas em papel filtro, recebidas de todos os estados brasileiros entre setembro de 1995 e julho de 2009, foram testadas para anticorpos IgM anti-Toxoplasma gondii. Para cada teste positivo na triagem, foram realizados exames confirmatórios em soros das mães e dos neonatos, obtidos por punção venosa periférica. Os casos foram considerados confirmados de acordo com um dos seguintes critérios: presença de IgM e IgG anti-Toxoplasma gondii no neonato e na mãe; IgM e IgG anti-Toxoplasma gondii somente no neonato; IgM e IgG anti-Toxoplasma gondii somente na mãe; ou aumento progressivo dos anticorpos IgG anti-Toxoplasma gondii no lactente. RESULTADOS: foram testadas 800.164 amostras. Observou-se uma prevalência geral de toxoplasmose congênita no país de 1/1.613, variando de 1/1.547 a 1/495 (2/10.000 to 20/10.000) em diferentes estados. CONCLUSÕES: a triagem neonatal em larga escala é uma ferramenta importante para a determinação da prevalência da toxoplasmose congênita. A alta prevalência dessa infecção no Brasil e a ampla variabilidade de sua epidemiologia entre os estados confirmam a necessidade de políticas de saúde e educação voltadas à prevenção e ao controle da toxoplasmose congênita em todo o país, respeitando as peculiaridades de cada estado.Editora da PUCRS - ediPUCRS2010-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistaseletronicas.pucrs.br/scientiamedica/article/view/5983Scientia Medica; Vol. 20 No. 1 (2010): Special issue on Toxoplasmosis; 64-70Scientia Medica; v. 20 n. 1 (2010): Número especial sobre Toxoplasmose; 64-701980-61081806-5562reponame:Scientia Medica (Porto Alegre. Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/scientiamedica/article/view/5983/4877Neto, Eurico CamargoAmorim, FabianaLago, Eleonor Gastalinfo:eu-repo/semantics/openAccess2018-01-26T21:17:57Zoai:ojs.revistaseletronicas.pucrs.br:article/5983Revistahttps://revistaseletronicas.pucrs.br/scientiamedica/PUBhttps://revistaseletronicas.pucrs.br/scientiamedica/oaiscientiamedica@pucrs.br || editora.periodicos@pucrs.br1980-61081806-5562opendoar:2018-01-26T21:17:57Scientia Medica (Porto Alegre. Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
Estimativa da distribuição regional da toxoplasmose congênita no Brasil a partir dos resultados de triagem neonatal
title Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
spellingShingle Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
Neto, Eurico Camargo
TOXOPLASMOSIS
CONGENITAL/prevention & control
title_short Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
title_full Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
title_fullStr Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
title_full_unstemmed Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
title_sort Estimation of the regional distribution of congenital toxoplasmosis in Brazil from the results of neonatal screening
author Neto, Eurico Camargo
author_facet Neto, Eurico Camargo
Amorim, Fabiana
Lago, Eleonor Gastal
author_role author
author2 Amorim, Fabiana
Lago, Eleonor Gastal
author2_role author
author
dc.contributor.author.fl_str_mv Neto, Eurico Camargo
Amorim, Fabiana
Lago, Eleonor Gastal
dc.subject.por.fl_str_mv TOXOPLASMOSIS
CONGENITAL/prevention & control
topic TOXOPLASMOSIS
CONGENITAL/prevention & control
description AIMS: To determine the prevalence of congenital toxoplasmosis in Brazil from samples of dried blood on filter paper from neonates attended by a private program of neonatal screening. METHODS: Blood samples collected from neonates by puncturing the heel and dried on filter paper, received from all Brazilian states from September 1995 to July 2009, were tested for Toxoplasma gondii-specific IgM antibodies. For each positive screening test, confirmatory tests were performed in sera of mothers and newborns, obtained by venipuncture. The infants were monitored and classified as infected according to one of the following criteria: presence of Toxoplasma gondii specific IgM and IgG in the newborn and the mother; Toxoplasma gondii-specific IgM and IgG in the newborn only; Toxoplasma gondii-specific IgM and IgG in the mother only; or increasing amount of Toxoplasma gondii-specific IgG in the infant. RESULTS: A total of 800,164 blood samples were tested. The overall prevalence of congenital toxoplasmosis was found to be 1/1,613 (6/10,000) in the country, ranging from 1/5,447 to 1/495 (2/10,000 to 20/10,000) in different states. CONCLUSIONS: Neonatal screening on a large scale is an important tool for determining the prevalence of congenital toxoplasmosis. The high prevalence of the infection in Brazil and the wide variability of its epidemiology among the states support the need to develop policies on health and education to prevent and control congenital toxoplasmosis across the country, respecting the peculiarities of each state.
publishDate 2010
dc.date.none.fl_str_mv 2010-04-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/scientiamedica/article/view/5983
url https://revistaseletronicas.pucrs.br/scientiamedica/article/view/5983
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/scientiamedica/article/view/5983/4877
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora da PUCRS - ediPUCRS
publisher.none.fl_str_mv Editora da PUCRS - ediPUCRS
dc.source.none.fl_str_mv Scientia Medica; Vol. 20 No. 1 (2010): Special issue on Toxoplasmosis; 64-70
Scientia Medica; v. 20 n. 1 (2010): Número especial sobre Toxoplasmose; 64-70
1980-6108
1806-5562
reponame:Scientia Medica (Porto Alegre. Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Scientia Medica (Porto Alegre. Online)
collection Scientia Medica (Porto Alegre. Online)
repository.name.fl_str_mv Scientia Medica (Porto Alegre. Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv scientiamedica@pucrs.br || editora.periodicos@pucrs.br
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