Hospital-based Surveillance to Evaluate the Impact of Rotavirus Vaccination in São Paulo, Brazil

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dc.contributor.authorPalazzi Safadi, Marco Aurelio
dc.contributor.authorBerezin, Eitan Naaman
dc.contributor.authorMunford, Veridiana
dc.contributor.authorAlmeida, Flavia Jaqueline
dc.contributor.authorMoraes, Jose Cassio de
dc.contributor.authorPinheiro, Cid Fernando
dc.contributor.authorRacz, Maria Lucia
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionSao Luiz Hosp
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2016-01-24T14:05:40Z
dc.date.available2016-01-24T14:05:40Z
dc.date.issued2010-11-01
dc.description.abstractBackground: Brazil implemented routine immunization with the human rotavirus vaccine, Rotarix, in 2006 and vaccination coverage reached 81% in 2008 in São Paulo. Our aim was to assess the impact of immunization on the incidence of severe rotavirus acute gastroenteritis (AGE).Methods: We performed a 5-year (2004-2008) prospective surveillance at a sentinel hospital in São Paulo, with routine testing for rotavirus in all children less than 5 years of age hospitalized with AGE. Genotypes of positive samples were determined by reverse transcription polymerase chain reaction.Results: During the study, 655 children hospitalized with AGE were enrolled; of whom 169 (25.8%) were positive for rotavirus. in the post-vaccine period, a 59% reduction in the number of hospitalizations of rotavirus AGE and a 42.2% (95% confidence interval [CI], 18.6%-59.0%; P = 0.001) reduction in the proportion of rotavirus-positive results among children younger than 5 years were observed, with the greatest decline among infants (69.2%; 95% CI, 24.7%-87.4%; P = 0.004). Furthermore, the number of all-cause hospitalizations for AGE was reduced by 29% among children aged <5 years. the onset and peak incidences of rotavirus AGE occurred 3 months later in the 2007 and 2008 seasons compared with previous years. Genotype G2 accounted for 15%, 70%, and 100% of all cases identified, respectively, in 2006, 2007, and 2008.Conclusions: After vaccine implementation, a marked decline in rotavirus AGE hospitalizations was demonstrated among children younger than 5 years of age, with the greatest reduction in the age groups targeted for vaccination. the predominance of genotype G2P[4] highlights the need of continued postlicensure surveillance studies.en
dc.description.affiliationSanta Casa Sch Med Sci, Dept Pediat, Div Pediat Infect Dis, São Paulo, Brazil
dc.description.affiliationSao Luiz Hosp, Div Pediat Infect Dis, São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Inst Biomed Sci, Dept Microbiol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent1019-1022
dc.identifierhttp://dx.doi.org/10.1097/INF.0b013e3181e7886a
dc.identifier.citationPediatric Infectious Disease Journal. Philadelphia: Lippincott Williams & Wilkins, v. 29, n. 11, p. 1019-1022, 2010.
dc.identifier.doi10.1097/INF.0b013e3181e7886a
dc.identifier.issn0891-3668
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/33062
dc.identifier.wosWOS:000283492400009
dc.language.isoeng
dc.publisherLippincott Williams & Wilkins
dc.relation.ispartofPediatric Infectious Disease Journal
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectrotavirusen
dc.subjectgastroenteritisen
dc.subjectrotavirus vaccineen
dc.subjectsurveillanceen
dc.subjectChildrenen
dc.titleHospital-based Surveillance to Evaluate the Impact of Rotavirus Vaccination in São Paulo, Brazilen
dc.typeinfo:eu-repo/semantics/article
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