Sticky traps for Aedes aegypti surveillance and targeted vector control in Sincelejo, Colombia.
Introduction. Entomological surveillance of adult Aedes aegypti mosquitoes provides better risk indicators than in immature stages. Objective. To determine the usefulness of MosquiTRAP™ traps for Ae. aegypti surveillance, targeted vector control, and the design of dengue prevention measures in Since...
| Publicado en: | Biomédica: Revista del Instituto Nacional de Salud Vol. 45; no. 1; pp. 118 - 133 |
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| Autores principales: | , , , |
| Formato: | Artículo |
| Publicado: |
Instituto Nacional de Salud of Colombia
Mar2025
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| Sumario: | Introduction. Entomological surveillance of adult Aedes aegypti mosquitoes provides better risk indicators than in immature stages. Objective. To determine the usefulness of MosquiTRAP™ traps for Ae. aegypti surveillance, targeted vector control, and the design of dengue prevention measures in Sincelejo, Colombia. Materials and methods. Forty-nine MosquiTRAP™ traps were deployed over six months to capture gravid Ae. aegypti females in two neighborhoods with historical reports of dengue cases. Entomological indices were calculated to monitor mosquito population dynamics, and the infection frequency of the captured mosquitoes with dengue, zika, and chikungunya virus were assessed. The rates of trap approval and adherence were evaluated, and risk maps were developed based on mosquito abundance. These maps facilitated the identification of specific areas for targeted vector control interventions. Results. A total of 1,475 mosquitoes were captured, of which 99.1% were identified as A. aegypti. The trap positivity index ranged from 85.7 to 42.9% per inspection, with a mean female Aedes index of two to three mosquitoes per house. Evidence of Ae. aegypti infestation was observed in both neighborhoods, although specific hotspots of high mosquito abundance were identified. No viral infection was detected in the captured mosquitoes. Conclusions. MosquiTRAP™ traps are useful for Ae. aegypti surveillance as a potential tool to guide vector control and prevention measures for diseases transmitted by this mosquito species. Introducción. La vigilancia entomológica del estadio adulto de Aedes aegypti brinda mejores indicadores de riesgo que los estadios inmaduros. Objetivo. Determinar la utilidad de las trampas MosquiTRAP™ para la vigilancia de Ae. aegypti, el control vectorial y la prevención del dengue en Sincelejo, Colombia. Materiales y métodos. Durante seis meses, se instalaron 49 trampas MosquiTRAP™ para la captura de hembras grávidas de Ae. aegypti en dos barrios con reportes históricos de casos de dengue. Se calcularon los índices entomológicos y se estimó la frecuencia de infección para los virus del dengue, zika y chikungunya en los mosquitos capturados. Se evaluaron los porcentajes de aprobación y uso de las trampas. Se levantaron mapas de riesgo considerando la abundancia de los mosquitos y se identificaron las zonas críticas para el posible direccionamiento de intervenciones. Resultados. Se capturaron 1.475 mosquitos, de los cuales el 99,1 % correspondió a Ae. aegypti. El índice de positividad de las trampas estuvo entre el 85,7 y el 42,9 %, por inspección, con un promedio de dos a tres hembras adultas por vivienda. Se evidenció una infestación de Ae. aegypti en ambos barrios, y se identificaron puntos críticos con alta abundancia. No se detectó infección viral en los mosquitos capturados. Conclusiones. Las trampas MosquiTRAP™ son útiles para la vigilancia de Ae. aegypti como potencial herramienta para el direccionamiento de las medidas de control vectorial y la prevención de las enfermedades transmitidas por este mosquito. |
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