Please use this identifier to cite or link to this item: http://www.repositorio.ufc.br/handle/riufc/6741
Title in Portuguese: Pandemic influenza A (H1N1) 2009 : epidemiological analysis of cases in a tropical/semi-arid region of Brazil
Author: Pires Neto, Roberto da Justa
Lemos, Daniele Rocha Queiroz
Cavalcanti, Luciano Pamplona de Góes
Ramos Junior, Alberto Novaes
Alencar, Carlos Henrique
Façanha, Mônica Cardoso
Barroso, Madalena Isabel Coelho
Vilar, Dina Cortez Lima Feitosa
Fonseca Neto, Manoel Dias da
Keywords: Vírus da Influenza A Subtipo H1N1
Influenza Humana
Issue Date: Apr-2013
Publisher: Revista da Sociedade Brasileira de Medicina Tropical
Citation: PIRES NETO, Roberto da Justa et al. Pandemic influenza A (H1N1) 2009 : epidemiological analysis of cases in a tropical/semi-arid region of Brazil. Revista da Sociedade Brasileira de Medicina Tropical, Uberaba, MG, v. 46, n. 2, p. 141-146, abr. 2013
Abstract: Introduction: The year 2009 marked the beginning of a pandemic caused by a new variant of influenza A (H1N1). After spreading through North America, the pandemic influenza virus (H1N1) 2009 spread rapidly throughout the world. The aim of this study was to describe the clinical and epidemiological characteristics of cases of pandemic influenza in a tropical/semi-arid region of Brazil. Methods: A retrospective study analyzed all suspected cases of pandemic influenza (H1N1) 2009 reported in the Ceará State through the National Information System for Notifiable Diseases during the pandemic period between 28 April, 2009 and November 25, 2010. Results: A total of 616 suspected cases were notified, 58 (9.4%) in the containment phase and 558 (90.6%) in the mitigation phase. Most cases were of affected young people resident in the city of Fortaleza, the largest urban center in the State of Ceará. The most frequent symptoms presented by the cases with confirmed infection were fever, cough, myalgia, arthralgia, and nasal congestion. Mortality rate was 0.0009/1,000 inhabitants and lethality was 5.6%. Deaths were observed only in the mitigation phase. Mortality rates were similar for both sexes but were higher in the age group under 5 years. Conclusions: The study suggests that the influenza A (H1N1) pandemic in this tropical/semi-arid region had a lower magnitude when compared to states in the Southern and Southeastern regions of Brazil.
URI: http://www.repositorio.ufc.br/handle/riufc/6741
ISSN: 0037-8682
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