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Evaluation of the baited ovitrap with natural attractant for monitoring Aedes spp. in Dili, capital of East Timor/Avaliacao da armadilha ovitrampa iscada com atraente natural para o monitoramento de Aedes spp. em Dili, capital do Timor-Leste

Ciência & saude coletiva, 2020-02, Vol.25 (2), p.665 [Peer Reviewed Journal]

COPYRIGHT 2020 Associacao Brasileira de Pos-Graduacao em Saude Coletiva - ABRASCO ;ISSN: 1413-8123 ;EISSN: 1678-4561 ;DOI: 10.1590/1413-81232020252.12512018

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  • Title:
    Evaluation of the baited ovitrap with natural attractant for monitoring Aedes spp. in Dili, capital of East Timor/Avaliacao da armadilha ovitrampa iscada com atraente natural para o monitoramento de Aedes spp. em Dili, capital do Timor-Leste
  • Author: Barreto, Ermelindo ; Resende, Marcelo Carvalho ; Eiras, Alvaro Eduardo ; Demarco, Paulo Cezar, Jr
  • Subjects: Analysis ; Epidemiology ; Housing ; Mosquitoes ; Rain
  • Is Part Of: Ciência & saude coletiva, 2020-02, Vol.25 (2), p.665
  • Description: Dengue transmission has been known in East Timor since 2005, but the country is not equipped with an Aedes aegypti mosquito monitoring and control program. This study aimed to evaluate the baited ovitrap as a possible tool to monitor the arbovirus vector Dengue (DENV), Chikungunya (CHIKV) and Zika (ZIKV) and was conducted in the city of Dili, capital of East-Timor, between epidemiological weeks 32 (02/08) and 48 (02/12) of 2016. In total, 70 ovitraps were installed in residences scattered throughout fifteen streets of four Administrative Posts (districts) of the city. The following entomological indicators were used: Ovitrap Positivity Index (OPI), Vector Density Index (VDI), and Egg Density Index (EDI). A total of 158.904 eggs were collected during the experiment. The OPI showed that 98100% of traps contained Aedes spp. in all areas of the study. The EDI and OPI indicators were positively and significantly correlated with the temperature. The two- and three-week lag for rainfall indicated a significant positive correlation for VDI and EDI. Therefore, the ovitrap is a tool that can integrate the actions of an Aedes spp. monitoring and control program in East-Timor. Key words Aedes spp., Oviposition trap, Ovitrap, East Timor A dengue ocorre no Timor-Leste desde 2005, porem nao existe um programa de monitoramento e controle do "Aedes aegypti". O objetivo deste estudo foi de avaliar a armadilha ovitrampa iscada com atraente natural como uma possivel ferramenta para monitorar o vetor das arboviroses: Dengue (DENV), Chikungunya (CHIKV) e Zika (ZIKV). O estudo foi realizado na cidade de Dili, capital do Timor-Leste, entre as semanas epidemiologicas 32 (02/08) a 48 (02/12) de 2016. Foram instaladas 70 armadilhas Ovitrampa, em residencias de 15 sucos (ruas), de quatro Postos Administrativos (bairros) da cidade. Para as analises dos dados utilizou-se os indicadores entomologicos: Indice de Positividade de Ovitrampa (IPO), Indice de Densidade Vetorial (IDV) e Indice de Densidade de Ovos (IDO). Durante o experimento foram coletados 158.904 ovos de Aedes spp.. O IPO demonstrou que todas as areas tiveram 98% a 100% de armadilhas contendo ovos de Aedes spp.. Os indicadores IDO e IPO apresentaram correlacoes positivas e significativa com a temperatura. A defasagem de duas e tres semanas para precipitacao indicou correlacao positiva significativa para IDV e IDO. Portanto, a armadilha ovitrampa e uma ferramenta que pode integrar as acoes de um programa de monitoramento e controle de Aedes spp. no Timor-Leste. Palavras-chave "Aedes" spp., Armadilha de oviposicao, Ovitrampa, Timor-Leste
  • Publisher: Associacao Brasileira de Pos-Graduacao em Saude Coletiva - ABRASCO
  • Language: Spanish
  • Identifier: ISSN: 1413-8123
    EISSN: 1678-4561
    DOI: 10.1590/1413-81232020252.12512018
  • Source: ProQuest Central
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