Laboratory-confirmed deaths caused by influenza A (H1N1)pdm09 in the Santa Catarina State, Brazil, 2009-2014

Abstract: INTRODUCTION: Little information is available on the evolution of influenza A (H1N1)pdm09-related mortality in Brazil. METHODS: During the period 2009-2014, official epidemiological surveillance and mortality data were used to ascertain influenza-related deaths in the Santa Catarina State...

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Bibliographic Details
Published in:Revista da Sociedade Brasileira de Medicina Tropical
Main Authors: Renata da Silva Cardoso Pereira, Emil Kupek
Format: Article in Journal/Newspaper
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT)
Subjects:
Influenza A (H1N1)
Mortality rate
Brazil
Arctic medicine. Tropical medicine
RC955-962
Arctic
Online Access:https://doi.org/10.1590/0037-8682-0045-2016
https://doaj.org/article/6314959aa8e4465c91edb126fef87a10
Description
Summary:Abstract: INTRODUCTION: Little information is available on the evolution of influenza A (H1N1)pdm09-related mortality in Brazil. METHODS: During the period 2009-2014, official epidemiological surveillance and mortality data were used to ascertain influenza-related deaths in the Santa Catarina State in Brazil. RESULTS: The highest overall mortality rate (2.3 per 100,000) was observed in 2009. Pregnant women constituted the highest risk group (mortality rate 18.0 per 100,000). Following vaccination of high-risk groups, the rate reduced sharply but peaked again in 2012. It subsequently decreased, albeit more gradually. CONCLUSIONS: Influenza A (H1N1)pdm09 mortality demonstrated a cyclic pattern, with two peaks followed by a gradual decrease.

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