Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/1884
Title: Seasonal dynamics of Aedes aegypti (Diptera: Culicidae) in the northernmost state of Brazil: a likely port-of-entry for dengue virus 4
Authors: Codeço, Cláudia Torres
Rocha, Nildimar Honorio
Velásquez, Claudia María Ríos
Santos, Maria da Conceição Alves doS
Mattos, Ingrid Vieira de
Luz, Sérgio Luiz Bessa
Reis, Izabel Cristina
Cunha, Guilherme Bernardino da
Freitas, Maria Goreti Rosa
Tsouris, Pantelis
Castro, Márcia Gonçalves de
Hayd, Ramão Luciano Nogueira
Moura, José Francisco Luitgards
Affilliation: Fundação Oswaldo Cruz. Programa de Computação Científica. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisa Leônidas & Maria Deane. Biodiversidade em Saúde. Manaus, AM, Brasil.
Universidade Federal de Roraima. Núcleo Avançado de Vetores. Boa Vista, RR, Brasil.
Universidade Federal de Roraima. Núcleo Avançado de Vetores. Boa Vista, RR, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisa Leônidas & Maria Deane. Biodiversidade em Saúde. Manaus, AM, Brasil.
Instituto Nacional de Pesquisas Espaciais. Departamento de Processamento de Imagem. São José dos Campos, SP, Brasil.
Universidade Federal de Roraima. Núcleo Avançado de Vetores. Boa Vista, RR, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários, Rio de Janeiro, Brasil
Freitas & Tsouris Consultants. Spata-Áttica, Greece.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Transmissores de Hematozoários. Rio de Janeiro, RJ, Brasil.
Universidade Federal de Roraima. Núcleo Avançado de Vetores. Boa Vista, RR, Brasil.
Universidade Federal de Roraima. Núcleo Avançado de Vetores. Boa Vista, RR, Brasil.
Abstract: Roraima is the northernmost state of Brazil, bordering both Venezuela and Guyana. Appropriate climate and vector conditions for dengue transmission together with its proximity to countries where all four dengue serotypes circulate make this state, particularly the capital Boa Vista, strategically important for dengue surveillance in Brazil. Nonetheless, few studies have addressed the population dynamics of Aedes aegypti in Boa Vista. In this study, we report temporal and spatial variations in Ae. aegypti population density using ovitraps in two highly populated neighbourhoods; Centro and Tancredo Neves. In three out of six surveys, Ae. aegypti was present in more than 80% of the sites visited. High presence levels of this mosquito suggest ubiquitous human exposure to the vector, at least during part of the year. The highest infestation rates occurred during the peak of the rainy seasons, but a large presence was also observed during the early dry season (although with more variation among years). Spatial distribution of positive houses changed from a sparse and local pattern to a very dense pattern during the dry-wet season transition. These results suggest that the risk of dengue transmission and the potential for the new serotype invasions are high for most of the year.
Keywords: Aedes Aegypti
Dengue Fever
Ovitraps
Seasonality
Amazon
Issue Date: 2009
Citation: CODEÇO, Cláudia Torres et al. Seasonal dynamics of Aedes aegypti (Diptera: Culicidae) in the northernmost state of Brazil: a likely port-of-entry for dengue virus 4. Memória do Instituto Oswaldo Cruz, Rio de Janeiro, v. 104, n. 4, p. 614-620, July 2009.
ISSN: 0074-0276
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos
AM - ILMD - Artigos de Periódicos

Files in This Item:
File Description SizeFormat 
Seasonal dynamics.pdf939.9 kBAdobe PDFThumbnail
View/Open


FacebookTwitterDeliciousLinkedInGoogle BookmarksBibTex Format mendeley Endnote DiggMySpace

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.