The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cadernos de Saúde Pública |
Texto Completo: | https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697 |
Resumo: | The authors describe the baseline malaria prevalence and arbovirus seroprevalence among 467 subjects in an ongoing cohort study in rural Amazonia. Most subjects (72.2%) reported one or more previous episodes of malaria, and 15.6% had been hospitalized for malaria, but only 3.6% of individuals five years or older had malaria parasites detected by microscopy (10 with Plasmodium vivax and 4 with P. falciparum). Antibodies to Alphavirus, Orthobunyavirus, and/or Flavivirus were detected by hemagglutination inhibition (HI) in 42.6% of subjects aged five years or older, with a higher seropositivity rate among males (49.2%) than females (36.2%). Since 98.9% of subjects had been immunized for yellow fever, the presence of cross-reactive antibodies to dengue and other Flaviviruses cannot be ruled out, but at least 12 subjects (3.3%) with IgM antibodies to dengue virus detected by ELISA had a putative recent exposure to this virus. |
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The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian populationMalariaDengueArbovirusesArbovirus InfectionsAmazonian EcosystemThe authors describe the baseline malaria prevalence and arbovirus seroprevalence among 467 subjects in an ongoing cohort study in rural Amazonia. Most subjects (72.2%) reported one or more previous episodes of malaria, and 15.6% had been hospitalized for malaria, but only 3.6% of individuals five years or older had malaria parasites detected by microscopy (10 with Plasmodium vivax and 4 with P. falciparum). Antibodies to Alphavirus, Orthobunyavirus, and/or Flavivirus were detected by hemagglutination inhibition (HI) in 42.6% of subjects aged five years or older, with a higher seropositivity rate among males (49.2%) than females (36.2%). Since 98.9% of subjects had been immunized for yellow fever, the presence of cross-reactive antibodies to dengue and other Flaviviruses cannot be ruled out, but at least 12 subjects (3.3%) with IgM antibodies to dengue virus detected by ELISA had a putative recent exposure to this virus.Descrevem-se aqui dados de prevalência de malária e soroprevalência de arboviroses na linha de base de um estudo de coorte, envolvendo 467 indivíduos, atualmente em curso na Amazônia rural. A maioria (72,2%) dos indivíduos relatou um ou mais episódios maláricos prévios, tendo 15,6% deles tido pelo menos uma internação hospitalar motivada pela malária, mas somente 3,6% dos indivíduos com idade igual ou superior a cinco anos tinham plasmódios (Plasmodium vivax em dez e P. falciparum em quatro) diagnosticados por microscopia. Detectaram-se anticorpos contra Alphavirus, Orthobunyavirus e Flavivirus, pelo teste de inibição de hemaglutinação, em 42,6% dos indivíduos com idade igual ou superior a cinco anos, com uma taxa de soropositividade maior entre indivíduos do sexo masculino (49,2%) do que os do feminino (36,2%). Como 98,9% dos indivíduos entrevistados tinham sido previamente vacinados contra a febre amarela, a presença de reações cruzadas com o vírus do dengue e outros Flavivirus não pode ser descartada, mas a exposição recente ao vírus do dengue foi evidenciada pela detecção de anticorpos IgM por ELISA em 12 indivíduos (3,3%).Reports in Public HealthCadernos de Saúde Pública2006-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697Reports in Public Health; Vol. 22 No. 6 (2006): JuneCadernos de Saúde Pública; v. 22 n. 6 (2006): Junho1678-44640102-311Xreponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZenghttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697/5419https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697/5420Silva-Nunes, Mônica daMalafronte, Rosely dos SantosLuz, Bruna de AlmeidaSouza, Estéfano Alves deMartins, Lívia CarícioRodrigues, Sueli GuerreiroChiang, Jannifer OliveiraVasconcelos, Pedro Fernando da CostaMuniz, Pascoal TorresFerreira, Marcelo Urbanoinfo:eu-repo/semantics/openAccess2024-03-06T15:27:09Zoai:ojs.teste-cadernos.ensp.fiocruz.br:article/2697Revistahttps://cadernos.ensp.fiocruz.br/ojs/index.php/csphttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/oaicadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br1678-44640102-311Xopendoar:2024-03-06T13:03:08.757842Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)true |
dc.title.none.fl_str_mv |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
title |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
spellingShingle |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population Silva-Nunes, Mônica da Malaria Dengue Arboviruses Arbovirus Infections Amazonian Ecosystem |
title_short |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
title_full |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
title_fullStr |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
title_full_unstemmed |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
title_sort |
The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population |
author |
Silva-Nunes, Mônica da |
author_facet |
Silva-Nunes, Mônica da Malafronte, Rosely dos Santos Luz, Bruna de Almeida Souza, Estéfano Alves de Martins, Lívia Carício Rodrigues, Sueli Guerreiro Chiang, Jannifer Oliveira Vasconcelos, Pedro Fernando da Costa Muniz, Pascoal Torres Ferreira, Marcelo Urbano |
author_role |
author |
author2 |
Malafronte, Rosely dos Santos Luz, Bruna de Almeida Souza, Estéfano Alves de Martins, Lívia Carício Rodrigues, Sueli Guerreiro Chiang, Jannifer Oliveira Vasconcelos, Pedro Fernando da Costa Muniz, Pascoal Torres Ferreira, Marcelo Urbano |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Silva-Nunes, Mônica da Malafronte, Rosely dos Santos Luz, Bruna de Almeida Souza, Estéfano Alves de Martins, Lívia Carício Rodrigues, Sueli Guerreiro Chiang, Jannifer Oliveira Vasconcelos, Pedro Fernando da Costa Muniz, Pascoal Torres Ferreira, Marcelo Urbano |
dc.subject.por.fl_str_mv |
Malaria Dengue Arboviruses Arbovirus Infections Amazonian Ecosystem |
topic |
Malaria Dengue Arboviruses Arbovirus Infections Amazonian Ecosystem |
description |
The authors describe the baseline malaria prevalence and arbovirus seroprevalence among 467 subjects in an ongoing cohort study in rural Amazonia. Most subjects (72.2%) reported one or more previous episodes of malaria, and 15.6% had been hospitalized for malaria, but only 3.6% of individuals five years or older had malaria parasites detected by microscopy (10 with Plasmodium vivax and 4 with P. falciparum). Antibodies to Alphavirus, Orthobunyavirus, and/or Flavivirus were detected by hemagglutination inhibition (HI) in 42.6% of subjects aged five years or older, with a higher seropositivity rate among males (49.2%) than females (36.2%). Since 98.9% of subjects had been immunized for yellow fever, the presence of cross-reactive antibodies to dengue and other Flaviviruses cannot be ruled out, but at least 12 subjects (3.3%) with IgM antibodies to dengue virus detected by ELISA had a putative recent exposure to this virus. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-06-01 |
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://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697 |
url |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697/5419 https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/2697/5420 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html application/pdf |
dc.publisher.none.fl_str_mv |
Reports in Public Health Cadernos de Saúde Pública |
publisher.none.fl_str_mv |
Reports in Public Health Cadernos de Saúde Pública |
dc.source.none.fl_str_mv |
Reports in Public Health; Vol. 22 No. 6 (2006): June Cadernos de Saúde Pública; v. 22 n. 6 (2006): Junho 1678-4464 0102-311X reponame:Cadernos de Saúde Pública instname:Fundação Oswaldo Cruz (FIOCRUZ) instacron:FIOCRUZ |
instname_str |
Fundação Oswaldo Cruz (FIOCRUZ) |
instacron_str |
FIOCRUZ |
institution |
FIOCRUZ |
reponame_str |
Cadernos de Saúde Pública |
collection |
Cadernos de Saúde Pública |
repository.name.fl_str_mv |
Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ) |
repository.mail.fl_str_mv |
cadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br |
_version_ |
1798943356457320448 |