Ecological study on mortality from influenza and pneumonia before and after influenza vaccination in the Northeast and South of Brazil

Bibliographic Data

ID5232553
AuthorsJanessa De Fátima Morgado De Oliveira (0000-0002-8482-5872, Universidade de São Paulo), Antonio Fernando Boing (0000-0001-9331-1550, Universidade Federal de Santa Catarina), Eliseu Alves Waldman (0000-0001-7807-6898, Universidade de São Paulo), J L F Antunes (0000-0003-3972-9723, Universidade de São Paulo)
Year2013
Volume29
Issue12
Pages2535-2545
Publication date2013-12-01
Open AccessYes
TypeARTICLE
VenueCadernos de Saude Publica (JOURNAL)
Journal identifiersISSN: 0102-311X • E-ISSN: 1678-4464
PublisherFapUNIFESP (SciELO) (PUBLISHER)
DOI10.1590/0102-311x00028413
PMID24356698
OpenAlexW2167662539
SciELOS0102-311X2013001200017
LanguageEN
Citations received1
References cited24

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

Coronavirus disease 2019 (COVID-19) · Disease · Environmental health · Human mortality from H5N1 · Infectious disease (medical specialty) · Mortality rate · Outbreak · Pneumonia · Population · Transmission (telecommunications) · Vaccination · COVID-19 epidemiological studies · Demography · Influenza Virus Research Studies · Internal Medicine · Medicine · Vaccine Coverage and Hesitancy · Virology

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