Spatial distribution of Aedes aegypti (Diptera: Culicidae) in vulnerable areas for the transmission of arboviruses

Soares, Efraim Naftali Lopes; Bezerra‐Santos, Marcos Antônio; Macedo, Lucia Oliveira de; Santos, Cléber Vinícius Brito dos; Agra, Maria Claudia Ribeiro; Alves, Lêucio Câmara; Ramos, Rafael Antonio Nascimento; Carvalho, Gílcia Aparecida de

doi:10.1590/0037-8682-0341-2018

Cited by 4 publications

(7 citation statements)

References 5 publications

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“…aegypti and Ae. albopictus infestation index [7]. Even studies that have failed to verify this relationship, highlight that humidity and temperature allow ideal conditions for vector reproduction and the consequent proliferation of dengue and other arboviruses [32].…”

Section: Discussionmentioning

confidence: 99%

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Spatio‐temporal dynamics of Aedes aegypti and Aedes albopictus oviposition in an urban area of northeastern Brazil

Moura¹,

Oliveira²,

Pedreira³

et al. 2020

Tropical Med Int Health

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objective The objective of this study was to analyse abundance and spatial distribution of Aedes aegypti and Aedes albopictus oviposition in the city of Natal-RN, 2016 to 2018. methods Three hundred and seven oviposition traps were installed covered the whole city and were monitored weekly from January 2016 to December 2018. To verify the abundance of the vector based on its location, the formation of oviposition clusters was studied using the Kernel statistics. Egg Density Index (EDI) and Oviposition Positivity Index (OPI) values were calculated. results Temperature and humidity presented weak and very weak correlation, respectively, with the oviposition indicators. The median of oviposition positivity index (OPI) was 60.5%, and the egg density index (EDI) was 45.4 eggs/trap. The OPI (71.1%) was higher in the second quarter of the year. The areas with the most persistent oviposition are located in a continuous strip that extends from the extreme of the northern district and extends along the western district of the city. Also noteworthy is the proximity to the strategic points. conclusion The spatio-temporal distribution of oviposition revealed that there is spatial segregation and marked seasonality. Therefore, this study highlights the importance of maintaining surveillance targeting and control strategies focused on these areas, especially during the most important period of the year.

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Section: Discussionmentioning

confidence: 99%

“…These climatic variables can affect oviposition, egg viability, larval development, longevity and adult dispersal [6]. In addition, socioeconomic factors such as uncoordinated urbanisation, lack of basic sanitation, irregular water distribution and incorrect waste management favoured the reproduction and dispersal of these vectors [7].…”

Section: Introductionmentioning

confidence: 99%

Spatio‐temporal dynamics of Aedes aegypti and Aedes albopictus oviposition in an urban area of northeastern Brazil

Moura¹,

Oliveira²,

Pedreira³

et al. 2020

Tropical Med Int Health

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“…A infecção por DENV está intrinsecamente associada com a reprodução dos mosquitos do gênero Aedes spp., e a reprodução está associada com a umidade relativa, temperatura e período chuvoso do local onde estão localizados os ovos do inseto (Steffler et al, 2016;Soares et al, 2019;do Nascimento et al, 2020). O que é reforçado por outros estudos que cruzam dados de infecção por DENV, temperatura, água e saneamento básico (da Silva & Machado, 2018;do Carmo et al, 2020).…”

Section: Dinâmica Espaço-temporal E Determinantes Sociais Em Saúdeunclassified

O estado da arte da dengue no nordeste do Brasil

Silva,

Santos,

Portella

et al. 2023

RSD

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Introdução: O vírus da dengue, por meio do mosquito-vetor do gênero Aedes spp., ocasiona a dengue que foi responsável por cerca de 2,1 milhões de casos no ano de 2019 no Brasil. A região Nordeste brasileira é a segunda mais prevalente em casos de dengue, contando com cerca de 1⁄5 das notificações naquele ano. Este estudo objetiva compreender o estado da arte da infecção pelo vírus da dengue no Nordeste brasileiro. Metodologia: Estudo sistemático da literatura com uso das palavras-chave “Dengue” e “Nordeste brasileiro” nas plataformas de busca SciELO, Lilacs e Pubmed/Medline, que ocorreu durante o mês de outubro de 2021. Resultados e Discussão: A infecção pelo vírus da dengue está correlacionada com a dinâmica espaço-temporal do mosquito e os determinantes sociais em saúde dos grupos sociais, a análise de surtos prévios e a situação atual da infecção pelo vírus da dengue, e, os modelos preditivos de surtos, o que permite a adoção de medidas preventivas primárias e secundárias contra a dengue. Conclusão: A dengue nos estados nordestinos tem íntima relação com os determinantes sociais em saúde dos grupos socioeconômicos, o que pode ser pormenorizada por meio da aplicação de modelos preditivos com adoção de medidas de combate ao mosquito-vetor.

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“…To date, WHO has promoted integrated vector control, in addition to conventional tools such as mosquito nets treated with materials, nets, oviposition traps (ovitraps), among others. Numerous studies have shown that ovitraps are an effective strategy that contributes to the monitoring of A. aegypti populations hence the areas at risk of transmission of arboviruses (38)(39)(40)(41)(42)(43). Mackay et al (44) developed the autocidal gravid ovitrap (AGO-A), a lethal ovitrap based on the gravid ovitrap (GO).…”

Section: Importance Of Aedes Aegypti and Biotechnological Approaches mentioning

confidence: 99%

Historical Perspective and Biotechnological Trends to Block Arboviruses Transmission by Controlling Aedes aegypti Mosquitos Using Different Approaches

et al. 2020

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Continuous climate changes associated with the disorderly occupation of urban areas have exposed Latin American populations to the emergence and reemergence of arboviruses transmitted by Aedes aegypti. The magnitude of the financial and political problems these epidemics may bring to the future of developing countries is still ignored. Due to the lack of effective antiviral drugs and vaccines against arboviruses, the primary measure for preventing or reducing the transmission of diseases depends entirely on the control of vectors or the interruption of human-vector contact. In Brazil the first attempt to control A. aegypti took place in 1902 by eliminating artificial sites of eproduction. Other strategies, such as the use of oviposition traps and chemical control with dichlorodiphenyltrichlorethane and pyrethroids, were successful, but only for a limited time. More recently, biotechnical approaches, such as the release of transgenics or sterile mosquitoes and the, development of transmission blocking vaccines, are being applied to try to control the A. aegypti population and/or arbovirus transmission. Endemic countries spend about twice as much to treat patients as they do on the prevention of mosquito-transmitted diseases. The result of this strategy is an explosive outbreak of arboviruses cases. This review summarizes the social impacts caused by A. aegypti-transmitted diseases, mainly from a biotechnological perspective in vector control aimed at protecting Latin American populations against arboviruses.

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Spatial distribution of Aedes aegypti (Diptera: Culicidae) in vulnerable areas for the transmission of arboviruses

Cited by 4 publications

References 5 publications

Spatio‐temporal dynamics of Aedes aegypti and Aedes albopictus oviposition in an urban area of northeastern Brazil

Spatio‐temporal dynamics of Aedes aegypti and Aedes albopictus oviposition in an urban area of northeastern Brazil

O estado da arte da dengue no nordeste do Brasil

Historical Perspective and Biotechnological Trends to Block Arboviruses Transmission by Controlling Aedes aegypti Mosquitos Using Different Approaches

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