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1.
Biomedica ; 39(4): 785-797, 2019 12 01.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-31860188

RESUMO

Introducción. Aedes albopictus es vector de arbovirus, como Flavivirus, Alphavirus, Bunyavirus, Phlebovirus, Orbivirus y Picornavirus. Muchos son agentes etiológicos de enfermedades en humanos. Actualmente, A. albopictus se encuentra en expansión geográfica por su adaptación a diversos ambientes y tipos de criaderos. En Colombia, este mosquito fue reportado por primera vez en 1998 y, hasta el momento, se ha registrado en 10 departamentos. Objetivo. Determinar la presencia de A. albopictus en Yopal, Casanare. Materiales y métodos. En una búsqueda activa de larvas de A. aegypti en la zona industrial de Yopal, se observaron por primera vez mosquitos adultos de A. albopictus. Por lo anterior, se realizó la inspección en el intradomicilio y el peridomicilio de las viviendas en ocho localidades del municipio, en la cual se recolectaron larvas y pupas al inspeccionar hábitats larvarios, y hembras adultas, mediante capturas sobre atrayente humano protegido. Resultados. Se identificaron 755 larvas de mosquitos, 71,5 % de A. aegypti, 24,8 % de A. albopictus, 3,2 % de Culex quinquefasciatus y 0,8 % de C. coronator y C. nigripalpus. Se capturaron 37 mosquitos adultos de A. albopictus. Los depósitos con mayor abundancia de este vector fueron las llantas. Conclusión. Ante la presencia de A. albopictus se sugiere intensificar el sistema de vigilancia entomológica para detectar nuevas poblaciones dentro del departamento y en las áreas cercanas. Se debe poner atención a los criaderos artificiales de las zonas cercanas a los parqueaderos de vehículos de transporte de alimentos, insumos y maquinaria, procedentes de áreas con presencia del vector.


Introduction: Aedes albopictus is an arbovirus vector, such as Flavivirus, Alphavirus, Bunyavirus, Phlebovirus, Orbivirus and Picornavirus. Many are etiological agents of diseases in humans. Currently, A. albopictus is in geographical expansion due to its adaptation to different environments and breeding sites. In Colombia this mosquito was first reported in 1998 and currently it has been registered in 10 departments. Objective: To determine the presence of A. albopictus in Yopal, Casanare. Materials and methods: In a search of larvae of A. aegypti in the industrial zone of Yopal adult mosquitoes of A. albopictus were observed for the first time. Then, the inspection was carried out in the indoor and outdoor of houses in eight localities of the municipality, in which larvae and pupae were collected by inspection of breeding sites and adult females were captured by human landing catches. Results: Seven hundred and seventy-five larvae were identified, 71.5 % larvae of A. aegypti, 24.8 % of A. albopictus, 3.2 % of Culex quinquefasciatus and 0.8 % of C. coronator and C. nigripalpus. Thirty-seven adult mosquitoes of A. albopictus were collected. The most abundant breeding sites of this vector were tires. Conclusion: Given the presence of A. albopictus we suggest to intensify the entomological surveillance system to detect new populations within the department and nearby areas. Attention should be given to artificial breeding sites located in areas close to the parking of vehicles of transport of foods, supplies, and machinery from areas with the presence of the vector.


Assuntos
Aedes/classificação , Mosquitos Vetores/classificação , Animais , Colômbia , Humanos , Larva/classificação , Especificidade da Espécie , Clima Tropical
2.
Biomédica (Bogotá) ; 39(4): 785-797, oct.-dic. 2019. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1089094

RESUMO

Introducción. Aedes albopictus es vector de arbovirus, como Flavivirus, Alphavirus, Bunyavirus, Phlebovirus, Orbivirus y Picornavirus. Muchos son agentes etiológicos de enfermedades en humanos. Actualmente, A. albopictus se encuentra en expansión geográfica por su adaptación a diversos ambientes y tipos de criaderos. En Colombia, este mosquito fue reportado por primera vez en 1998 y, hasta el momento, se ha registrado en 10 departamentos. Objetivo. Determinar la presencia de A. albopictus en Yopal, Casanare. Materiales y métodos. En una búsqueda activa de larvas de A. aegypti en la zona industrial de Yopal, se observaron por primera vez mosquitos adultos de A. albopictus. Por lo anterior, se realizó la inspección en el intradomicilio y el peridomicilio de las viviendas en ocho localidades del municipio, en la cual se recolectaron larvas y pupas al inspeccionar hábitats larvarios, y hembras adultas, mediante capturas sobre atrayente humano protegido. Resultados. Se identificaron 755 larvas de mosquitos, 71,5 % de A. aegypti, 24,8 % de A.albopictus, 3,2 % de Culex quinquefasciatus y 0,8 % de C. coronator y C. nigripalpus. Se capturaron 37 mosquitos adultos de A. albopictus. Los depósitos con mayor abundancia de este vector fueron las llantas. Conclusión. Ante la presencia de A. albopictus se sugiere intensificar el sistema de vigilancia entomológica para detectar nuevas poblaciones dentro del departamento y en las áreas cercanas. Se debe poner atención a los criaderos artificiales de las zonas cercanas a los parqueaderos de vehículos de transporte de alimentos, insumos y maquinaria, procedentes de áreas con presencia del vector.


Introduction: Aedes albopictus is an arbovirus vector, such as Flavivirus, Alphavirus, Bunyavirus, Phlebovirus, Orbivirus and Picornavirus. Many are etiological agents of diseases in humans. Currently, A. albopictus is in geographical expansion due to its adaptation to different environments and breeding sites. In Colombia this mosquito was first reported in 1998 and currently it has been registered in 10 departments. Objective: To determine the presence of A. albopictus in Yopal, Casanare. Materials and methods: In a search of larvae of A. aegypti in the industrial zone of Yopal adult mosquitoes of A. albopictus were observed for the first time. Then, the inspection was carried out in the indoor and outdoor of houses in eight localities of the municipality, in which larvae and pupae were collected by inspection of breeding sites and adult females were captured by human landing catches. Results: Seven hundred and seventy-five larvae were identified, 71.5 % larvae of A.aegypti, 24.8 % of A. albopictus, 3.2 % of Culex quinquefasciatus and 0.8 % of C. coronator and C. nigripalpus. Thirty-seven adult mosquitoes of A. albopictus were collected. The most abundant breeding sites of this vector were tires. Conclusion: Given the presence of A. albopictus we suggest to intensify the entomological surveillance system to detect new populations within the department and nearby areas. Attention should be given to artificial breeding sites located in areas close to the parking of vehicles of transport of foods, supplies, and machinery from areas with the presence of the vector.


Assuntos
Aedes , Vetores de Doenças , Mosquitos Vetores
3.
Rev Panam Salud Publica ; 39(6): 341-351, 2016 Jun.
Artigo em Espanhol | MEDLINE | ID: mdl-27706434

RESUMO

Objectives Present a strategy to determine the baseline in endemic areas in the process of vector interruption for Chagas disease (CHD). Methods A social and environmental questionnaire and an entomological survey evaluated the physical conditions of dwellings, the inhabitants' knowledge of CHD, the entomological triatomine indicators and the statistical relationship among these variables. Results Colonization and natural infection with Trypanosoma cruzi exist in Rhodnius prolixus, the principal vector of CHD in Colombia. Colonization was related to palm-thatched houses constructed with adobe or wattle and daub. The Panstrongylus geniculatus vector was found to be colonizing. Almost 50% of the surveyed population associated the term CHD with human disease and 37%, with triatomines. Conclusions R. prolixus can be considered to be the principal vector of T. cruzi in domestic environments and the process of interruption is feasible within the prioritized municipality. New studies are needed to verify the existence of wild populations of R. prolixus that could affect future stages of the process and demonstrate whether P. geniculatus is a factor in the transmission of T. cruzi. These scenarios can be made viable by including the inhabitants throughout the process, since they have been highly sensitive in vector detection inside their houses. The study design presented here can be adapted to other endemic areas of the Region of the Americas.


Assuntos
Doença de Chagas/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Controle de Insetos , Insetos Vetores , Panstrongylus , Trypanosoma cruzi , Animais , Colômbia , Habitação , Humanos
4.
Rev Panam Salud Publica ; 39(6),jun. 2016
Artigo em Espanhol | PAHO-IRIS | ID: phr-28540

RESUMO

Objetivos. Presentar una estrategia para determinar la línea de base en áreas endémicas en el proceso de interrupción vectorial de la enfermedad de Chagas (ECh). Métodos. Con un cuestionario socioambiental y una encuesta entomológica, se evaluaron las condiciones físicas de los domicilios, el conocimiento de los habitantes sobre la ECh, los indicadores entomológicos de triatominos y la relación estadística entre estas variables. Resultados. Existe colonización e infección natural con Trypanosoma cruzi en Rhodnius prolixus, el principal vector de la ECh en Colombia. La colonización estuvo relacionada con casas de techos de hojas de palma y paredes de adobe o bahareque. Se encontró el vector Panstrongylus geniculatus con hábitos de colonización. Casi 50% de la población encuestada asociaba el término ECh con una enfermedad humana y 37%, con los triatominos. Conclusiones. R. prolixus puede considerarse el principal vector de T. cruzi en ambientes domésticos y el proceso de interrupción vectorial es factible dentro del municipio priorizado. Se necesitan nuevos estudios que comprueben la existencia de poblaciones silvestres de R. prolixus que puedan afectar las etapas futuras del proceso y demostrar si hay una participación de P. geniculatus en la dinámica de transmisión de T. cruzi. Los anteriores escenarios pueden ser viabilizados con la inclusión de los habitantes en todo el proceso, ya que han sido altamente sensibles en la detección de vectores dentro de sus casas. El diseño del estudio aquí presentado puede ser adaptado en otras áreas endémicas de la Región de las Américas.


Objectives. Present a strategy to determine the baseline in endemic areas in the process of vector interruption for Chagas disease (CHD). Methods. A social and environmental questionnaire and an entomological survey evaluated the physical conditions of dwellings, the inhabitants’ knowledge of CHD, the entomological triatomine indicators and the statistical relationship among these variables. Results. Colonization and natural infection with Trypanosoma cruzi exist in Rhodnius prolixus, the principal vector of CHD in Colombia. Colonization was related to palmthatched houses constructed with adobe or wattle and daub. The Panstrongylus geniculatus vector was found to be colonizing. Almost 50% of the surveyed population associated the term CHD with human disease and 37%, with triatomines. Conclusions. R. prolixus can be considered to be the principal vector of T. cruzi in domestic environments and the process of interruption is feasible within the prioritized municipality. New studies are needed to verify the existence of wild populations of R. prolixus that could affect future stages of the process and demonstrate whether P. geniculatus is a factor in the transmission of T. cruzi. These scenarios can be made viable by including the inhabitants throughout the process, since they have been highly sensitive in vector detection inside their houses. The study design presented here can be adapted to other endemic areas of the Region of the Americas.


Assuntos
Controle de Vetores de Doenças , Trypanosoma cruzi , Doença de Chagas , Colômbia , Controle de Vetores de Doenças , Doença de Chagas
5.
Rev. panam. salud pública ; 39(6): 341-351, Jun. 2016. graf
Artigo em Espanhol | LILACS | ID: lil-795367

RESUMO

RESUMEN Objetivos Presentar una estrategia para determinar la línea de base en áreas endémicas en el proceso de interrupción vectorial de la enfermedad de Chagas (ECh). Métodos Con un cuestionario socioambiental y una encuesta entomológica, se evaluaron las condiciones físicas de los domicilios, el conocimiento de los habitantes sobre la ECh, los indicadores entomológicos de triatominos y la relación estadística entre estas variables. Resultados Existe colonización e infección natural con Trypanosoma cruzi en Rhodnius prolixus, el principal vector de la ECh en Colombia. La colonización estuvo relacionada con casas de techos de hojas de palma y paredes de adobe o bahareque. Se encontró el vector Panstrongylus geniculatus con hábitos de colonización. Casi 50% de la población encuestada asociaba el término ECh con una enfermedad humana y 37%, con los triatominos. Conclusiones R. prolixus puede considerarse el principal vector de T. cruzi en ambientes domésticos y el proceso de interrupción vectorial es factible dentro del municipio priorizado. Se necesitan nuevos estudios que comprueben la existencia de poblaciones silvestres de R. prolixus que puedan afectar las etapas futuras del proceso y demostrar si hay una participación de P. geniculatus en la dinámica de transmisión de T. cruzi. Los anteriores escenarios pueden ser viabilizados con la inclusión de los habitantes en todo el proceso, ya que han sido altamente sensibles en la detección de vectores dentro de sus casas. El diseño del estudio aquí presentado puede ser adaptado en otras áreas endémicas de la Región de las Américas.


ABSTRACT Objectives Present a strategy to determine the baseline in endemic areas in the process of vector interruption for Chagas disease (CHD). Methods A social and environmental questionnaire and an entomological survey evaluated the physical conditions of dwellings, the inhabitants’ knowledge of CHD, the entomological triatomine indicators and the statistical relationship among these variables. Results Colonization and natural infection with Trypanosoma cruzi exist in Rhodnius prolixus, the principal vector of CHD in Colombia. Colonization was related to palm-thatched houses constructed with adobe or wattle and daub. The Panstrongylus geniculatus vector was found to be colonizing. Almost 50% of the surveyed population associated the term CHD with human disease and 37%, with triatomines. Conclusions R. prolixus can be considered to be the principal vector of T. cruzi in domestic environments and the process of interruption is feasible within the prioritized municipality. New studies are needed to verify the existence of wild populations of R. prolixus that could affect future stages of the process and demonstrate whether P. geniculatus is a factor in the transmission of T. cruzi. These scenarios can be made viable by including the inhabitants throughout the process, since they have been highly sensitive in vector detection inside their houses. The study design presented here can be adapted to other endemic areas of the Region of the Americas.


Assuntos
Doença de Chagas/diagnóstico , Doença de Chagas/transmissão , Vetores de Doenças
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