scholarly journals Wolbachia Infection Reduces Blood-Feeding Success in the Dengue Fever Mosquito, Aedes aegypti

2009 ◽  
Vol 3 (9) ◽  
pp. e516 ◽  
Author(s):  
Andrew P. Turley ◽  
Luciano A. Moreira ◽  
Scott L. O'Neill ◽  
Elizabeth A. McGraw
2014 ◽  
Vol 111 (19) ◽  
pp. 6946-6951 ◽  
Author(s):  
A. C. Chagas ◽  
J. L. Ramirez ◽  
N. Jasinskiene ◽  
A. A. James ◽  
J. M. C. Ribeiro ◽  
...  

2012 ◽  
Vol 86 (4) ◽  
pp. 656-664 ◽  
Author(s):  
Jonathan M. Darbro ◽  
Scott A. Ritchie ◽  
Matthew B. Thomas ◽  
Petrina H. Johnson ◽  
Peter A. Ryan ◽  
...  

Biomédica ◽  
2017 ◽  
Vol 37 ◽  
pp. 135 ◽  
Author(s):  
Andrés Gómez-Palacio ◽  
Juan Suaza-Vasco ◽  
Sandra Castaño ◽  
Omar Triana ◽  
Sandra Uribe

Introducción. Aedes aegypti y Ae. albopictus son reconocidos vectores de arbovirus como los del dengue, la fiebre amarilla, el chikungunya y el Zika, en regiones tropicales y subtropicales del mundo. En Colombia, la distribución geográfica de Ae. albopictus ha sufrido un incremento y hoy incluye ciudades como Cali y Medellín. Hasta ahora, sin embargo, no se ha recabado información concluyente sobre su infección viral y su capacidad de transmisión a los humanos.Objetivo. Determinar la infección natural por dengue en ejemplares de Ae. albopictus recolectados en un área urbana de Medellín.Materiales y métodos. Se recolectaron individuos de Ae. albopictus en el campus de la Universidad Nacional de Colombia, sede Medellín. Se confirmó su clasificación taxonómica mediante el análisis del gen citocromo oxidasa I (COI), y se extrajo el ARN total para la identificación del virus del dengue y de los respectivos serotipos. La presencia del genotipo DENV se infirió mediante el análisis del gen NS3.Resultados. El análisis del COI corroboró el estatus taxonómico de Ae. albopictus. Uno de los mosquitos procesados fue positivo para DENV-2 y el análisis del NS3 mostró una gran similitud con el genotipo asiático-americano.Conclusión. Se reporta la infección con DENV-2 en Ae. albopictus en Medellín, Colombia. La presencia del genotipo asiático-americano en una zona urbana sugiere su posible circulación entre humanos y en Ae. albopictus, lo cual alerta sobre su eventual papel en la transmisión del DENV-2, y sobre la necesidad de incluir esta especie en la vigilancia entomológica en Colombia.


Author(s):  
Márcia Maria Fernandes De OLIVEIRA

A Dengue é registrada em Curitiba/PR desde a década de 1990. A incidência da doença nesta cidade tornou-se alarmante em 2002, quando os primeiros casos autóctones foram registrados no mês de abril. Aplicando a análise rítmica dos tipos de tempo, foi possível observar como as condições climáticas foram favoráveis ao desenvolvimento do vetor (Aedes Aegypti) e, conseqüentemente, da ocorrência dos referidos casos autóctones. Os resultados desta pesquisa evidenciaram que o clima da cidade tem apresentado mudanças, tornando-se mais quente (principalmente no verão e outono), o que criou condições para a ocorrência de casos autóctones de Dengue em Curitiba. Outros aspectos ambientais também foram envolvidos na análise. Dengue Fever in Curitiba/PR: a climatological approach about March/April - 2002 event Abstract Dengue Fever has been registered in Curitiba/PR since 1990 decade. Such fact went on and became alarming in 2002, when the first autocton cases was registered in April. Applying the rhythmic analysis of weather types of, it was possible observe how the climate conditions were favorable to the vector development (Aedes Aegypti) and, consequently, the autocton cases happened. This research results showed that city climate has changed, it has become warmer than before (mainly summer and autumn), and created conditions to the occurrence of autocton cases of Dengue Fever. Others environmental aspects were also involved in this analises.


2018 ◽  
Vol 4 (2) ◽  
pp. 83-90
Author(s):  
Ign Joko Suyono ◽  
Aditya K. Karim

Dengue is the most important emerging tropical viral disease of humans in the world today. Aedes aegypti is a major mosquito vector responsible for transmitting many viral diseases and this mosquito that spreads major health problems like dengue fever. The resistance of Ae. aegypti to insecticides is already widespread and represents a serious problem for programmes aimed at the control and prevention of dengue in tropical countries. The search for compounds extracted from medicinal plant preparations as alternatives insecticide for mosquito control is in immediate need. Alternative approach for control Ae. aegypti dan virus dengue using the medicinal plant will be discussed in this paper.Key words: Medicinal plant, Aedes aegypti, dengue fever, dengue haemorragi fever, dengue shock syndrome


2016 ◽  
Vol 4 (1) ◽  
pp. 26
Author(s):  
Arief Puji Eka Prasetya ◽  
Oky Dwi Nurhayati ◽  
Kurniawan Teguh Martono

High dengue fever cases strongly influenced by the behavior of the public them self. Almost most of the territory in urban and rural areas can be considered as potentially endemic. In the development of the Center of Desease Control give serious action against the locations of the potential for development of the Aedes Aegypti. One way that can be done in order to prevent the environment to being free of dengue wiggler is through some sort of surveys. This monitoring system is designed using Waterfall methodology using the programming language such as Javascript, PHP, CodeIgniter framework, AngularJS, and Ionic also using MySQL database. A needs analysis conducted by interviewing one of the members of Center of Desease Control’s member and the Village Head of Muktiharjo so that the design could be done, appropriate and well targeted. The results of the final project is mobile and desktop applications that can change the performance of the JUMANTIK (Mosquito Eradication Officers) with more modern, neat, and systematic application so that the data obtained can meet the desired needs. The system that has been designed has been tested using black-box method and the results of these tests indicate that all the functions contained in this system has worked well.


1992 ◽  
Vol 165 (1) ◽  
pp. 61-71 ◽  
Author(s):  
J. M. Ribeiro

Salivary gland homogenates and oil-induced saliva of the mosquito Aedes aegypti dilate the rabbit aortic ring and contract the guinea pig ileum. The vasodilatory activity is endothelium-dependent, heat-stable, sensitive to both trypsin and chymotrypsin treatments, and both smooth muscle activities cross-desensitize to the tachykinin peptide substance P. Both bioactivities co-elute when salivary gland homogenates are fractionated by reversed-phase HPLC. Molecular sieving chromatography indicates a relative molecular mass of 1400. A monoclonal antibody specific to the carboxy terminal region of tachykinins reacts with material in the posterior part of the central lobe of paraformaldehyde-fixed salivary glands. The presence of a vasodilatory peptide of the tachykinin family in the salivary glands of A. aegypti is proposed and its role in blood feeding is discussed.


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