نتایج جستجو برای: aedes aegypti

تعداد نتایج: 10681  

2014
Louise Oliveira Débora Lacerda Fabíola Nunes

Background Dengue is a viral disease, caused by the dengue virus, a Flaviviridae family virus. Dengue is transmitted by several species of mosquito within the genus Aedes, principally A. aegypti. The dengue control is based on the mosquito combat, most of time through chemical insecticides. Hecogenin is a sapogenin present in the leaves of species from the Agave genus, with a wide spectrum of r...

Journal: :The American journal of tropical medicine and hygiene 2008
Doug E Brackney Brian D Foy Ken E Olson

Dengue viruses (DENV) cause significant morbidity and mortality worldwide and are transmitted by the mosquito Aedes aegypti. Mosquitoes become infected after ingesting a viremic bloodmeal, and molecular mechanisms involved in bloodmeal digestion may affect the ability of DENV to infect the midgut. We used RNA interference (RNAi) to silence expression of four midgut serine proteases and assessed...

Journal: :iranian journal of public health 0
m.zaim av.manouchehri m.r.y.ershadi

biological research of all kinds on mosquitoes must be built upon a foundation of correct identification and sound classification. except for the anopheline vectors of malaria, relatively little is known about other mosquitoes in iran and other countries in southwest asia. in view of this a comprehensive study on the mosquito fauna of iran has started since 1981. in this report the list of the ...

Journal: :Genetics 2010
Melissa A Toups Matthew W Hahn

The mosquito Anopheles gambiae has heteromorphic sex chromosomes, while the mosquito Aedes aegypti has homomorphic sex chromosomes. We use retrotransposed gene duplicates to show an excess of movement off the An. gambiae X chromosome only after the split with Ae. aegypti, suggesting that their ancestor had homomorphic sex chromosomes.

Journal: :Memorias do Instituto Oswaldo Cruz 2001
C S Andrade A G Cáceres A Vaquerizo S Ibañez-Bernal L S Cachay

We report here the reappearance of Aedes aegypti in the Rimac district, and summarize the history of this mosquito species in Peru since its first detection in 1852. On March 17 2000 were found Ae. aegypti and Culex quinquefasciatus in Mariscal Castilla town, Flor de Amancaes, San Juan de Amancaes, El Altillo and Santa Rosa in the Rimac district, Lima Province.

Journal: :The Southeast Asian journal of tropical medicine and public health 2009
A Rohani R Potiwat I Zamree H L Lee

In this study, artificial membrane feeding technique was used to orally feed Aedes aegypti with dengue and chikungunya viruses. Virus detection was carried out by reverse transcriptase polymerase chain reaction. The study did not detect dual infection of Ae. aegypti with dengue and chikungunya virus from the same pool or from individual mosquitoes. Oral receptivity of Ae. aegypti to chikungunya...

Journal: :Journal of the American Mosquito Control Association 1991
P Reiter M A Amador N Colon

An ovitrap containing hay infusion and a second ovitrap adjacent to it containing a 10% dilution of the infusion in tap water together yielded 8 times more Aedes aegypti eggs than single CDC ovitraps containing tap water. These "enhanced pairs" were significantly more attractive than pairs with other combinations of infusion, water or methyl propionate, and have proven useful for daily monitori...

Journal: :Tropical biomedicine 2010
O Wan-Norafikah W A Nazni S Noramiza S Shafa'ar-Ko'ohar A Azirol-Hisham R Nor-Hafizah M G Sumarni H Mohd-Hasrul M Sofian-Azirun H L Lee

A preliminary study on the vertical dispersal of Aedes populations in high-rise apartments was carried out in Presint 9, Putrajaya, Malaysia. Ovitraps were placed indoors within four blocks of high-rise apartments from the ground floors (0.0 - 3.0 m) until up to the tenth floors (28.1 - 30.0 m). Aedes aegypti was the dominant species found in the ovitraps (87.85%), while Aedes albopictus was fo...

Journal: :Journal of the American Mosquito Control Association 2002
Claudia M E Romero-Vivas Jeremy G Wheeler Andrew K I Falconar

A sampling method coupled with statistical calibration factors was developed to accurately assess the numbers of larvae and pupae of Aedes aegypti in large water-storage containers of variable capacities and water levels. Aedes aegypti productivity in different types of breeding sites found in an urban study area in central Colombia was assessed and compared. In this study, water-storage tanks ...

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2004
Ricardo Lourenço-de-Oliveira Márcia G Castro Marieta A H Braks L Philip Lounibos

The invasion of a secondary forest within the city of Rio de Janeiro by Aedes aegypti and Ae. albopictus was evaluated from July 1997 to June 1998 through collections of immature stages in ovitraps set at 1 m, 10 m, 100 m, 500 m, and 1,000 m into the forest from houses on the periphery. Both mosquito species were much more abundant close to houses (1-10 m). Aedes aegypti was not collected beyon...

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