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Laboratory-based rotavirus surveillance during the introduction of a vaccination program, Brazil, 2005-2009.
Carvalho-Costa, Filipe Anibal; Volotão, Eduardo de Mello; de Assis, Rosane Maria Santos; Fialho, Alexandre Madi; de Andrade, Juliana da Silva Ribeiro; Rocha, Ludmila Nascimento; Tort, Luis Fernando López; da Silva, Marcelle Figueira Marques; Gómez, Mariela Martinez; de Souza, Pamella Macedo; Leite, José Paulo Gagliardi.
Afiliação
  • Carvalho-Costa FA; Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Fiocruz, Brazil.
Pediatr Infect Dis J ; 30(1 Suppl): S35-41, 2011 Jan.
Article em En | MEDLINE | ID: mdl-21048523
BACKGROUND: : Brazil introduced universal antirotavirus vaccination in March 2006. This article reports the results of rotavirus A (RV-A) surveillance from January 2005 to December 2009. METHODS: : A total of 6109 fecal samples were collected in 18 Brazilian states. RV-A was detected by enzyme immunoassay and/or polyacrylamide gel electrophoresis, and genotyped through seminested reverse transcription-polymerase chain reaction. RESULTS: : RV-A was detected in 20.3% (n = 1242) of the samples. Among children less than 2 years old, regardless the antirotavirus vaccination status, the rates of RV-A detection were 33.8% in 2005, 23.7% in 2006, 16.8% in 2007, 22.9% in 2008, and 18.3% in 2009 (P < 0.001; χ test for linear trend). Among RV-A-positive samples, genotype G1P[8] or G1P[not typed(NT)] was detected in 14% in 2005, 12.3% in 2006, 9.5% in 2007, 0.7% in 2008, and 20.4% in 2009; G2P[4]/G2P[NT] was characterized in 9% in 2005, 49% in 2006, 66% in 2007, 85% in 2008, and 37.5% in 2009; G3P[8]/G3P[NT] was observed in 8.7% in 2005, 3.5% in 2006, and 5.7% in 2009; G9P[8]/G9P[NT] was observed in 52% in 2005, 22% in 2006, 12.3% in 2007, 3.2% in 2008, and 3.4% in 2009. CONCLUSIONS: : Our data demonstrate the reemergence of RV-A genotype G2P[4] in Brazil from 2005 to 2008, and that the rate of G2P[4] detection decreased in 2009, probably reflecting natural oscillations of RV-A genotypes.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Infecções por Rotavirus / Rotavirus / Vacinas contra Rotavirus / Fezes Tipo de estudo: Screening_studies Limite: Adolescent / Adult / Aged / Aged80 / Child / Child, preschool / Female / Humans / Infant / Male País/Região como assunto: America do sul / Brasil Idioma: En Revista: Pediatr Infect Dis J Assunto da revista: DOENCAS TRANSMISSIVEIS / PEDIATRIA Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Infecções por Rotavirus / Rotavirus / Vacinas contra Rotavirus / Fezes Tipo de estudo: Screening_studies Limite: Adolescent / Adult / Aged / Aged80 / Child / Child, preschool / Female / Humans / Infant / Male País/Região como assunto: America do sul / Brasil Idioma: En Revista: Pediatr Infect Dis J Assunto da revista: DOENCAS TRANSMISSIVEIS / PEDIATRIA Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos