| Author | Souza, Raquel L. | |
| Author | Nazaré, Romero J. | |
| Author | Argibay, Hernan D. | |
| Author | Pellizzaro, Maysa | |
| Author | Anjos, Rosângela O. | |
| Author | Portilho, Moyra M. | |
| Author | Nascimento, Leile Camila Jacob | |
| Author | Reis, Mitermayer Galvão | |
| Author | Kitron, Uriel D. | |
| Author | Ribeiro, Guilherme S. | |
| Access date | 2023-06-15T19:08:44Z | |
| Available date | 2023-06-15T19:08:44Z | |
| Document date | 2023 | |
| Citation | SOUZA, Raquel L. et al. Density of Aedes aegypti (Diptera: Culicidae) in a low-income Brazilian urban community where dengue, Zika, and chikungunya viruses co-circulate. Parasites and Vectors, v. 16, n. 159, p. 1-15 2023. | en_US |
| ISSN | 1756-3305 | en_US |
| URI | https://www.arca.fiocruz.br/handle/icict/59049 | |
| Sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).
Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB).
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES ).
Ministério da Educação do Brasil. Departamento de Ciência e Tecnologia, Secretaria de Ciência, Tecnologia e Insumos Estratégicos.
Universidade Federal da Bahia (UFBA).
Fundação Oswaldo Cruz (FIOCRUZ). | en_US |
| Language | eng | en_US |
| Publisher | BMC | en_US |
| Rights | open access | en_US |
| Subject in Portuguese | Aedes aegypti | en_US |
| Subject in Portuguese | Indicadores ambientais | en_US |
| Subject in Portuguese | Monitoramento ambiental | en_US |
| Subject in Portuguese | Controle de mosquitos | en_US |
| Subject in Portuguese | Mosquitos vetores | en_US |
| Subject in Portuguese | Doenças transmitidas por mosquitos | en_US |
| Subject in Portuguese | Fatores socioeconômicos | en_US |
| Subject in Portuguese | Abastecimento de água | en_US |
| Title | Density of Aedes aegypti (Diptera: Culicidae) in a low-income Brazilian urban community where dengue, Zika, and chikungunya viruses co-circulate | en_US |
| Type | Article | en_US |
| DOI | 10.1186/s13071-023-05766-5 | |
| Abstract | Background: Low-income urban communities in the tropics often lack sanitary infrastructure and are overcrowded, favoring Aedes aegypti proliferation and arboviral transmission. However, as Ae. aegypti density is not spatially homogeneous, understanding the role of specific environmental characteristics in determining vector distribution is critical for planning control interventions. The objectives of this study were to identify the main habitat types for Ae. Aegypti, assess their spatial densities to identify major hotspots of arbovirus transmission over time and investigate underlying factors in a low-income urban community in Salvador, Brazil. We also tested the field-collected mosquitoes for arboviruses. Methods: A series of four entomological and socio-environmental surveys was conducted in a random sample of 149 households and their surroundings between September 2019 and April 2021. The surveys included searching for potential breeding sites (water-containing habitats) and for Ae. aegypti immatures in them, capturing adult mosquitoes and installing ovitraps. The spatial distribution of Ae. aegypti density indices were plotted using kernel density-ratio maps, and the spatial autocorrelation was assessed for each index. Visual differences on the spatial distribution of the Ae. aegypti hotspots were compared over time. The association of entomological findings with socio-ecological characteristics was examined. Pools of female Ae. aegypti were tested for dengue, Zika and chikungunya virus infection. Results: Overall, 316 potential breeding sites were found within the study households and 186 in the surrounding public spaces. Of these, 18 (5.7%) and 7 (3.7%) harbored a total of 595 and 283 Ae. aegypti immatures, respectively. The most productive breeding sites were water storage containers within the households and puddles and waste materials in public areas. Potential breeding sites without cover, surrounded by vegetation and containing organic matter were significantly associated with the presence of immatures, as were households that had water storage containers. None of the entomological indices, whether based on immatures, eggs or adults, detected a consistent pattern of vector clustering in the same areas over time. All the mosquito pools were negative for the tested arboviruses. Conclusions: This low-income community displayed high diversity of Ae. aegypti habitats and a high degree of heterogeneity of vector abundance in both space and time, a scenario that likely reflects other low-income communities. Improving basic sanitation in low-income urban communities through the regular water supply, proper management of solid wastes and drainage may reduce water storage and the formation of puddles, minimizing opportunities for Ae. aegypti proliferation in such settings. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Salvador, BA, Brasil. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Salvador, BA, Brasil / Yale School of Public Health. New Haven, CT, USA. | en_US |
| Affilliation | Emory University. Atlanta, GA, USA. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto Gonçalo Moniz. Salvador, BA, Brasil / Universidade Federal da Bahia. Salvador, BA, Brasil. | en_US |
| Subject | Aedes aegypti | en_US |
| Subject | Environmental indicators | en_US |
| Subject | Environmental monitoring | en_US |
| Subject | Mosquito control | en_US |
| Subject | Mosquito vectors | en_US |
| Subject | Mosquito-borne diseases | en_US |
| Subject | Socioeconomic factors | en_US |
| Subject | Water supply | en_US |
| DeCS | Aedes | en_US |
| DeCS | Indicadores ambientais | en_US |
| DeCS | Monitoramento ambiental | en_US |
| DeCS | Controle de mosquitos | en_US |
| DeCS | Doenças transmitidas por vetores | en_US |
| DeCS | Fatores socioeconômicos | en_US |
| DeCS | Abastecimento de água | en_US |
| xmlui.metadata.dc.subject.ods | 01 Erradicação da pobreza | |
| xmlui.metadata.dc.subject.ods | 03 Saúde e Bem-Estar | |
