Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/5171 |
Resumo: | The study compared mortality from influenza and pneumonia in elderly people (65 years or older) before and since implementation of influenza vaccination in the South and Northeast regions of Brazil. Official population and mortality data were retrieved from government agencies to estimate weekly mortality rates. The Serfling model was used to identify influenza outbreaks and estimate the mortality attributable to them. In the South, the vaccination period showed a major reduction in mortality from influenza and pneumonia and in the number and duration of influenza outbreaks. These results were interpreted as consistent with the hypothesis of the vaccination program's effectiveness. In the Northeast, there was an increase in mortality from influenza and pneumonia during vaccination, which was associated with a quality improvement in recording causes of death in the elderly. An increase was also seen in mortality attributable to influenza outbreaks, suggesting a mismatch between the period in which vaccination is conducted and the relevant climatic characteristics for influenza transmission. |
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Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of BrazilHuman InfluenzaRespiratory Tract DiseasesVaccinationSazonal VariationThe study compared mortality from influenza and pneumonia in elderly people (65 years or older) before and since implementation of influenza vaccination in the South and Northeast regions of Brazil. Official population and mortality data were retrieved from government agencies to estimate weekly mortality rates. The Serfling model was used to identify influenza outbreaks and estimate the mortality attributable to them. In the South, the vaccination period showed a major reduction in mortality from influenza and pneumonia and in the number and duration of influenza outbreaks. These results were interpreted as consistent with the hypothesis of the vaccination program's effectiveness. In the Northeast, there was an increase in mortality from influenza and pneumonia during vaccination, which was associated with a quality improvement in recording causes of death in the elderly. An increase was also seen in mortality attributable to influenza outbreaks, suggesting a mismatch between the period in which vaccination is conducted and the relevant climatic characteristics for influenza transmission.Se comparó la mortalidad por influenza y neumonía en adultos mayores (65 años o más) antes y después del inicio de la vacunación en el Noreste y Sur de Brasil. Datos oficiales sobre población y muertes fueron recuperados de agencias gubernamentales para estimar las tasas de mortalidad semanales. Se utilizó el modelo Serfling para identificar brotes de gripe y evaluar la mortalidad atribuible a esos brotes. En el Sur, hubo una reducción significativa de la mortalidad por influenza y neumonía y en la frecuencia y duración de los brotes de influenza en el periodo de vacunación, lo que sugiere la eficacia de la eficacia del programa de vacunación. En el Nordeste, el aumento de la mortalidad por influenza y neumonía durante la vacunación se explica por la mejora en la calidad del registro de causas de muerte entre las personas mayores. La mortalidad atribuible a los brotes de influenza también se incrementó durante la vacunación, lo que sugiere una falta de coincidencia entre el período de vacunación y características climáticas de interés para la transmisión de la gripe.Comparou-se a mortalidade por gripe e pneumonia de idosos (65 anos ou mais) antes e depois do início da vacinação nas regiões Nordeste e Sul do Brasil. Dados oficiais de população e de mortalidade foram recuperados junto às agências governamentais para a estimação de coeficientes semanais de mortalidade. Para a identificação de surtos de gripe e a estimação da mortalidade atribuível a esses surtos, foi utilizado o modelo de Serfling. Na Região Sul, o período com vacinação teve expressiva redução da mortalidade por gripe e pneumonia, e da frequência e duração dos surtos de gripe. Esses resultados foram interpretados como sendo compatíveis com a hipótese de efetividade do programa de vacinação. Na Região Nordeste, houve aumento da mortalidade por gripe e pneumonia durante a vacinação, o que foi associado à melhoria da qualidade do registro das causas de óbito entre idosos. Foi também constatado aumento da mortalidade atribuível aos surtos de gripe, sugerindo inadequação entre o período em que ocorre a vacinação e características climáticas de interesse para a transmissão da gripe.Reports in Public HealthCadernos de Saúde Pública2013-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/5171Reports in Public Health; Vol. 29 No. 12 (2013): DecemberCadernos de Saúde Pública; v. 29 n. 12 (2013): Dezembro1678-44640102-311Xreponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZenghttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/5171/10595https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/5171/10596Oliveira, Janessa de Fátima Morgado deBoing, Antonio FernandoWaldman, Eliseu AlvesAntunes, José Leopoldo Ferreirainfo:eu-repo/semantics/openAccess2024-03-06T15:28:34Zoai:ojs.teste-cadernos.ensp.fiocruz.br:article/5171Revistahttps://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:2024-03-06T13:05:57.884670Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)true |
dc.title.none.fl_str_mv |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
title |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
spellingShingle |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil Oliveira, Janessa de Fátima Morgado de Human Influenza Respiratory Tract Diseases Vaccination Sazonal Variation |
title_short |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
title_full |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
title_fullStr |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
title_full_unstemmed |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
title_sort |
Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil |
author |
Oliveira, Janessa de Fátima Morgado de |
author_facet |
Oliveira, Janessa de Fátima Morgado de Boing, Antonio Fernando Waldman, Eliseu Alves Antunes, José Leopoldo Ferreira |
author_role |
author |
author2 |
Boing, Antonio Fernando Waldman, Eliseu Alves Antunes, José Leopoldo Ferreira |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Janessa de Fátima Morgado de Boing, Antonio Fernando Waldman, Eliseu Alves Antunes, José Leopoldo Ferreira |
dc.subject.por.fl_str_mv |
Human Influenza Respiratory Tract Diseases Vaccination Sazonal Variation |
topic |
Human Influenza Respiratory Tract Diseases Vaccination Sazonal Variation |
description |
The study compared mortality from influenza and pneumonia in elderly people (65 years or older) before and since implementation of influenza vaccination in the South and Northeast regions of Brazil. Official population and mortality data were retrieved from government agencies to estimate weekly mortality rates. The Serfling model was used to identify influenza outbreaks and estimate the mortality attributable to them. In the South, the vaccination period showed a major reduction in mortality from influenza and pneumonia and in the number and duration of influenza outbreaks. These results were interpreted as consistent with the hypothesis of the vaccination program's effectiveness. In the Northeast, there was an increase in mortality from influenza and pneumonia during vaccination, which was associated with a quality improvement in recording causes of death in the elderly. An increase was also seen in mortality attributable to influenza outbreaks, suggesting a mismatch between the period in which vaccination is conducted and the relevant climatic characteristics for influenza transmission. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-01 |
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/5171 |
url |
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/5171 |
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/5171/10595 https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/5171/10596 |
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. 29 No. 12 (2013): December Cadernos de Saúde Pública; v. 29 n. 12 (2013): Dezembro 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_ |
1798943373619363840 |