Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil
Introduction: Due to recent outbreaks of Dengue and Chikungunya and an absence of effective monitoring of the mosquito Aedes spp. in the municipality of São Raimundo das Mangabeiras, State of Maranhão, we aimed to demonstrate the potential of ovitraps used together with mathematical models and geot...
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The Journal of Infection in Developing Countries
2020-04-01
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| Series: | Journal of Infection in Developing Countries |
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| Online Access: | https://jidc.org/index.php/journal/article/view/12245 |
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| author | João Victor Oliveira Noleto Hevilem Letícia Moura do Nascimento Moraes Tamires de Moura Lima João Gustavo Mendes Rodrigues Diogo Tavares Cardoso Kalyl Chaves Lima Richardson Soares de Souza Melo Guilherme Silva Miranda |
| author_facet | João Victor Oliveira Noleto Hevilem Letícia Moura do Nascimento Moraes Tamires de Moura Lima João Gustavo Mendes Rodrigues Diogo Tavares Cardoso Kalyl Chaves Lima Richardson Soares de Souza Melo Guilherme Silva Miranda |
| author_sort | João Victor Oliveira Noleto |
| collection | DOAJ |
| description |
Introduction: Due to recent outbreaks of Dengue and Chikungunya and an absence of effective monitoring of the mosquito Aedes spp. in the municipality of São Raimundo das Mangabeiras, State of Maranhão, we aimed to demonstrate the potential of ovitraps used together with mathematical models and geotechnology to improve control of this mosquito.
Methodology: From January to December of 2017, ovitraps were set up in five different neighborhoods (Centro, Vila Cardoso, Nazaré, São José e São Francisco). Positivity indices were calculated for each ovitraps, besides the egg density and average number of eggs. Some of the eggs were used for species identification. Mathematical models of correlation and logistic regression were used to evaluate the influence of abiotic factors on egg distribution during each month. Spatial analysis was carried out using georeferencing.
Results: A total of 4,453 eggs were counted, with A. aegypti and A. albopictus present in each month and neighborhood. The mathematical models show that rainfall can result in a significant increase in the number of eggs. Entomological calculation indicates that there is a high risk of dissemination of arboviruses in the area. Spatially, it was possible to indicate sites with the largest number of collected eggs, which may facilitate future interventions.
Conclusions: As such, ovitraps have proven to be an effective and low cost method for the monitoring of Aedes spp., and that its use may help in arboviruses prevention campaigns.
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| format | Article |
| id | doaj-art-41a8d3e504e14ea681b1c63c9f5b9a5c |
| institution | DOAJ |
| issn | 1972-2680 |
| language | English |
| publishDate | 2020-04-01 |
| publisher | The Journal of Infection in Developing Countries |
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| series | Journal of Infection in Developing Countries |
| spelling | doaj-art-41a8d3e504e14ea681b1c63c9f5b9a5c2025-08-20T02:57:04ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802020-04-01140410.3855/jidc.12245Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast BrazilJoão Victor Oliveira Noleto0Hevilem Letícia Moura do Nascimento Moraes1Tamires de Moura Lima2João Gustavo Mendes Rodrigues3Diogo Tavares Cardoso4Kalyl Chaves Lima5Richardson Soares de Souza Melo6Guilherme Silva Miranda7Federal Institute of Education, Science and Technology of Maranhão, Department of Education, São Raimundo das Mangabeiras, BrazilFederal Institute of Education, Science and Technology of Maranhão, Department of Education, São Raimundo das Mangabeiras, BrazilFederal Institute of Education, Science and Technology of Maranhão, Department of Education, São Raimundo das Mangabeiras, BrazilFederal University of Minas Gerais, Departament of Parasitology, Institute of Biological Sciences, Belo Horizonte, BrazilFederal University of Minas Gerais, Departament of Parasitology, Institute of Biological Sciences, Belo Horizonte, BrazilMunicipal Secretary of Health, São Raimundo das Mangabeiras, BrazilFederal Institute of Education, Science and Technology of Maranhão, Department of Education, São Raimundo das Mangabeiras, BrazilFederal Institute of Education, Science and Technology of Maranhão, Department of Education, São Raimundo das Mangabeiras, Brazil Introduction: Due to recent outbreaks of Dengue and Chikungunya and an absence of effective monitoring of the mosquito Aedes spp. in the municipality of São Raimundo das Mangabeiras, State of Maranhão, we aimed to demonstrate the potential of ovitraps used together with mathematical models and geotechnology to improve control of this mosquito. Methodology: From January to December of 2017, ovitraps were set up in five different neighborhoods (Centro, Vila Cardoso, Nazaré, São José e São Francisco). Positivity indices were calculated for each ovitraps, besides the egg density and average number of eggs. Some of the eggs were used for species identification. Mathematical models of correlation and logistic regression were used to evaluate the influence of abiotic factors on egg distribution during each month. Spatial analysis was carried out using georeferencing. Results: A total of 4,453 eggs were counted, with A. aegypti and A. albopictus present in each month and neighborhood. The mathematical models show that rainfall can result in a significant increase in the number of eggs. Entomological calculation indicates that there is a high risk of dissemination of arboviruses in the area. Spatially, it was possible to indicate sites with the largest number of collected eggs, which may facilitate future interventions. Conclusions: As such, ovitraps have proven to be an effective and low cost method for the monitoring of Aedes spp., and that its use may help in arboviruses prevention campaigns. https://jidc.org/index.php/journal/article/view/12245TrapsArbovirusesMosquitoesVectors |
| spellingShingle | João Victor Oliveira Noleto Hevilem Letícia Moura do Nascimento Moraes Tamires de Moura Lima João Gustavo Mendes Rodrigues Diogo Tavares Cardoso Kalyl Chaves Lima Richardson Soares de Souza Melo Guilherme Silva Miranda Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil Journal of Infection in Developing Countries Traps Arboviruses Mosquitoes Vectors |
| title | Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil |
| title_full | Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil |
| title_fullStr | Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil |
| title_full_unstemmed | Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil |
| title_short | Use of ovitraps for the seasonal and spatial monitoring of Aedes spp. in an area endemic for arboviruses in Northeast Brazil |
| title_sort | use of ovitraps for the seasonal and spatial monitoring of aedes spp in an area endemic for arboviruses in northeast brazil |
| topic | Traps Arboviruses Mosquitoes Vectors |
| url | https://jidc.org/index.php/journal/article/view/12245 |
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