INTRODUCTION: Sylvatic yellow fever (SYF) is enzootic in Brazil, causing periodic outbreaks in humans living near forest borders or in rural areas. In this study, the cycling patterns of this arbovirosis were analyzed. METHODS: Spectral Fourier analysis was used to capture the periodicity patterns of SYF in time series. RESULTS: SYF outbreaks have not increased in frequency, only in the number of cases. There are two dominant cycles in SYF outbreaks, a seven year cycle for the central-western region and a 14 year cycle for the northern region. Most of the variance was concentrated in the central-western region and dominated the entire endemic region. CONCLUSIONS: The seven year cycle is predominant in the endemic region of the disease due the greater contribution of variance in the central-western region; however, it was possible identify a 14 cycle that governs SYF outbreaks in the northern region. No periodicities were identified for the remaining geographical regions.
INTRODUCTION: Sylvatic yellow fever (SYF) is enzootic in Brazil, causing periodic outbreaks in humans living near forest borders or in rural areas. In this study, the cycling patterns of this arbovirosis were analyzed. METHODS: Spectral Fourier analysis was used to capture the periodicity patterns of SYF in time series. RESULTS: SYF outbreaks have not increased in frequency, only in the number of cases. There are two dominant cycles in SYF outbreaks, a seven year cycle for the central-western region and a 14 year cycle for the northern region. Most of the variance was concentrated in the central-western region and dominated the entire endemic region. CONCLUSIONS: The seven year cycle is predominant in the endemic region of the disease due the greater contribution of variance in the central-western region; however, it was possible identify a 14 cycle that governs SYF outbreaks in the northern region. No periodicities were identified for the remaining geographical regions.
Authors: Jaqueline Goes de Jesus; Tiago Gräf; Marta Giovanetti; Maria Angélica Mares-Guia; Joilson Xavier; Maricelia Lima Maia; Vagner Fonseca; Allison Fabri; Roberto Fonseca Dos Santos; Felicidade Mota Pereira; Leandro Ferraz Oliveira Santos; Luciana Reboredo de Oliveira da Silva; Zuinara Pereira Gusmão Maia; Jananci Xavier Gomes Cerqueira; Julien Thèze; Leandro Abade; Mirza de Carvalho Santana Cordeiro; Sintia Sacramento Cerqueira Torquato; Eloisa Bahia Santana; Neuza Santos de Jesus Silva; Rosemary Sarmento Oitiçica Dourado; Ademilson Brás Alves; Adeilde do Socorro Guedes; Pedro Macedo da Silva Filho; Nuno Rodrigues Faria; Carlos F Campelo de Albuquerque; André Luiz de Abreu; Alessandro Pecego Martins Romano; Julio Croda; Rodrigo Fabiano do Carmo Said; Gabriel Muricy Cunha; Jeane Magnavita da Fonseca Cerqueira; Arabela Leal E Silva de Mello; Ana Maria Bispo de Filippis; Luiz Carlos Junior Alcantara Journal: PLoS Negl Trop Dis Date: 2020-08-11
Authors: Eduardo S Moreno; Ilaria Agostini; Ingrid Holzmann; Mario S Di Bitetti; Luciana I Oklander; Martín M Kowalewski; Pablo M Beldomenico; Silvina Goenaga; Mariela Martínez; Eduardo Lestani; Arnaud L J Desbiez; Philip Miller Journal: Mem Inst Oswaldo Cruz Date: 2015-10-23 Impact factor: 2.743
Authors: Dinair Couto-Lima; Yoann Madec; Maria Ignez Bersot; Stephanie Silva Campos; Monique de Albuquerque Motta; Flávia Barreto Dos Santos; Marie Vazeille; Pedro Fernando da Costa Vasconcelos; Ricardo Lourenço-de-Oliveira; Anna-Bella Failloux Journal: Sci Rep Date: 2017-07-07 Impact factor: 4.379
Authors: Marissa L Childs; Nicole Nova; Justine Colvin; Erin A Mordecai Journal: Philos Trans R Soc Lond B Biol Sci Date: 2019-08-12 Impact factor: 6.237
Authors: N R Faria; M U G Kraemer; S C Hill; J Goes de Jesus; R S Aguiar; F C M Iani; J Xavier; J Quick; L du Plessis; S Dellicour; J Thézé; R D O Carvalho; G Baele; C-H Wu; P P Silveira; M B Arruda; M A Pereira; G C Pereira; J Lourenço; U Obolski; L Abade; T I Vasylyeva; M Giovanetti; D Yi; D J Weiss; G R W Wint; F M Shearer; S Funk; B Nikolay; V Fonseca; T E R Adelino; M A A Oliveira; M V F Silva; L Sacchetto; P O Figueiredo; I M Rezende; E M Mello; R F C Said; D A Santos; M L Ferraz; M G Brito; L F Santana; M T Menezes; R M Brindeiro; A Tanuri; F C P Dos Santos; M S Cunha; J S Nogueira; I M Rocco; A C da Costa; S C V Komninakis; V Azevedo; A O Chieppe; E S M Araujo; M C L Mendonça; C C Dos Santos; C D Dos Santos; A M Mares-Guia; R M R Nogueira; P C Sequeira; R G Abreu; M H O Garcia; A L Abreu; O Okumoto; E G Kroon; C F C de Albuquerque; K Lewandowski; S T Pullan; M Carroll; T de Oliveira; E C Sabino; R P Souza; M A Suchard; P Lemey; G S Trindade; B P Drumond; A M B Filippis; N J Loman; S Cauchemez; L C J Alcantara; O G Pybus Journal: Science Date: 2018-08-23 Impact factor: 47.728