Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil

Detalhes bibliográficos
Autor(a) principal: Lafer, Manuel Mindlin
Data de Publicação: 2007
Outros Autores: Moraes-Pinto, Maria Isabel de, Weckx, Lily Yin
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista do Instituto de Medicina Tropical de São Paulo
Texto Completo: https://www.revistas.usp.br/rimtsp/article/view/31082
Resumo: A seroprevalence study to detect total antibodies against Hepatitis A Virus was done with 220 samples from 589 Native Indians from Xingu National Park, Brazil, in five Kaiabi and Kuikuro villages, the most populous ethnic groups. Using a commercial immunoassay kit we detected 97.7% positive samples (95% Confidence Interval: 95%-99%). We noticed a precocious seroconversion, before the age of six years, when the disease is usually asymptomatic. These results are similar to those found in the literature in non-Indian population studies of the Northern, Northeastern and West Central regions of Brazil. They suggest that it is not necessary to introduce vaccination against Hepatitis A in these highly endemic populations.
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spelling Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil Prevalência de anticorpos contra o vírus da hepatite A entre os índios Kuikuro e Kaiabi do Parque Indígena do Xingu, Brasil Hepatitis AAntibodiesSouth American IndiansSerology A seroprevalence study to detect total antibodies against Hepatitis A Virus was done with 220 samples from 589 Native Indians from Xingu National Park, Brazil, in five Kaiabi and Kuikuro villages, the most populous ethnic groups. Using a commercial immunoassay kit we detected 97.7% positive samples (95% Confidence Interval: 95%-99%). We noticed a precocious seroconversion, before the age of six years, when the disease is usually asymptomatic. These results are similar to those found in the literature in non-Indian population studies of the Northern, Northeastern and West Central regions of Brazil. They suggest that it is not necessary to introduce vaccination against Hepatitis A in these highly endemic populations. Um estudo de soroprevalência para detectar anticorpos totais contra o Vírus da Hepatite A foi realizado com 220 amostras obtidas de 589 indivíduos de cinco aldeias indígenas das tribos Kaiabi e Kuikuro, as mais populosas do Parque Nacional do Xingu, Brasil. Utilisando um kit comercial de ensaio imunoenzimático, detectamos 97,7% amostras positivas (Intervalo de Confiança de 95%: 95%-99%), com uma soroconversão precoce, antes dos seis anos de idade, quando a doença costuma ser assintomática. Estes resultados são semelhantes aos resultados encontrados na literatura em estudos com populações não-indígenas das regiões Norte, Nordeste e Centro-Oeste do Brasil, e sugere que não há necessidade de introdução de vacinação contra Hepatite A nestas populações de alta endemicidade. Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo2007-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rimtsp/article/view/31082Revista do Instituto de Medicina Tropical de São Paulo; Vol. 49 No. 3 (2007); 155-157 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 49 Núm. 3 (2007); 155-157 Revista do Instituto de Medicina Tropical de São Paulo; v. 49 n. 3 (2007); 155-157 1678-99460036-4665reponame:Revista do Instituto de Medicina Tropical de São Pauloinstname:Instituto de Medicina Tropical (IMT)instacron:IMTenghttps://www.revistas.usp.br/rimtsp/article/view/31082/32966Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Pauloinfo:eu-repo/semantics/openAccessLafer, Manuel MindlinMoraes-Pinto, Maria Isabel deWeckx, Lily Yin2012-07-07T19:01:30Zoai:revistas.usp.br:article/31082Revistahttp://www.revistas.usp.br/rimtsp/indexPUBhttps://www.revistas.usp.br/rimtsp/oai||revimtsp@usp.br1678-99460036-4665opendoar:2022-12-13T16:51:46.917999Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)true
dc.title.none.fl_str_mv Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
Prevalência de anticorpos contra o vírus da hepatite A entre os índios Kuikuro e Kaiabi do Parque Indígena do Xingu, Brasil
title Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
spellingShingle Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
Lafer, Manuel Mindlin
Hepatitis A
Antibodies
South American Indians
Serology
title_short Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
title_full Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
title_fullStr Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
title_full_unstemmed Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
title_sort Prevalence of antibodies against hepatitis A virus among the Kuikuro and Kaiabi Indians of Xingu National Park, Brazil
author Lafer, Manuel Mindlin
author_facet Lafer, Manuel Mindlin
Moraes-Pinto, Maria Isabel de
Weckx, Lily Yin
author_role author
author2 Moraes-Pinto, Maria Isabel de
Weckx, Lily Yin
author2_role author
author
dc.contributor.author.fl_str_mv Lafer, Manuel Mindlin
Moraes-Pinto, Maria Isabel de
Weckx, Lily Yin
dc.subject.por.fl_str_mv Hepatitis A
Antibodies
South American Indians
Serology
topic Hepatitis A
Antibodies
South American Indians
Serology
description A seroprevalence study to detect total antibodies against Hepatitis A Virus was done with 220 samples from 589 Native Indians from Xingu National Park, Brazil, in five Kaiabi and Kuikuro villages, the most populous ethnic groups. Using a commercial immunoassay kit we detected 97.7% positive samples (95% Confidence Interval: 95%-99%). We noticed a precocious seroconversion, before the age of six years, when the disease is usually asymptomatic. These results are similar to those found in the literature in non-Indian population studies of the Northern, Northeastern and West Central regions of Brazil. They suggest that it is not necessary to introduce vaccination against Hepatitis A in these highly endemic populations.
publishDate 2007
dc.date.none.fl_str_mv 2007-06-01
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://www.revistas.usp.br/rimtsp/article/view/31082
url https://www.revistas.usp.br/rimtsp/article/view/31082
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/rimtsp/article/view/31082/32966
dc.rights.driver.fl_str_mv Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo
publisher.none.fl_str_mv Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo
dc.source.none.fl_str_mv Revista do Instituto de Medicina Tropical de São Paulo; Vol. 49 No. 3 (2007); 155-157
Revista do Instituto de Medicina Tropical de São Paulo; Vol. 49 Núm. 3 (2007); 155-157
Revista do Instituto de Medicina Tropical de São Paulo; v. 49 n. 3 (2007); 155-157
1678-9946
0036-4665
reponame:Revista do Instituto de Medicina Tropical de São Paulo
instname:Instituto de Medicina Tropical (IMT)
instacron:IMT
instname_str Instituto de Medicina Tropical (IMT)
instacron_str IMT
institution IMT
reponame_str Revista do Instituto de Medicina Tropical de São Paulo
collection Revista do Instituto de Medicina Tropical de São Paulo
repository.name.fl_str_mv Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)
repository.mail.fl_str_mv ||revimtsp@usp.br
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