نتایج جستجو برای: culex quinquefasiatus
تعداد نتایج: 4428 فیلتر نتایج به سال:
1. Justification for a Culex pipiens quinquefasciatus Genome Project. Culex species are important vectors of human pathogens in the United States and world-wide, including the aetiologic agents of West Nile encephalitis, Eastern equine encephalitis, Venezuelan equine encephalitis, Japanese encephalitis, St. Louis encephalitis, Ross River encephalitis, Murray Valley encephalitis, Rift valley fev...
The genus Culex is not only one of the most dominant in terms of number of species and individuals but also one of the most complex and difficult genera among the mosquitoes of Southeast Asia. In a recent preliminary study a rough /estimate of between 120-130 species, both previously recognized and new, have been seen from the area. They are distributed among 7 subgenera as follows: Neoculex wi...
An outbreak of encephalitis due to West Nile (WN) virus occurred in New York City and the surrounding areas during 1999. Mosquitoes were collected as part of a comprehensive surveillance program implemented to monitor the outbreak. More than 32,000 mosquitoes representing 24 species were tested, and 15 WN virus isolates were obtained. Molecular techniques were used to identify the species repre...
Spatial repellency of metofluthrin-impregnated polyethylene plastic strips against mosquitoes, Aedes aegypti and Culex quinquefasciatus, were studied in a residential area in Hai Phong city, Vietnam. Thirty houses were selected as trial sites; half of these were assigned as untreated control and the other half were assigned for treatment. Primarily, irrespective of the room size, one room was t...
Ecosystem changes caused by anthropogenic activities have modified the environment in ways that at times promote the emergence of vector-borne diseases. Here, we study the effects of combined sewage overflows (CSOs) from urban streams in Atlanta, GA, on oviposition site selection by Culex quinquefasciatus under seminatural field conditions. Counting egg rafts was a reliable indicator of oviposi...
Although lard-can traps have been used for sampling host-seeking mosquitoes for at least a half-century, the materials from which they originally were constructed no longer are available. We therefore devised a method for constructing such devices from parts available in the ventilation industry. These traps, baited with birds and mounted near the tops of trees, were employed to monitor the hos...
He pointed out the coincidence of the time of biting of the mosquito Culex jatigans, with that of the crowding of the filarial embryos in the peripheral circulation. McKenzie (1881) was able to demonstrate the reversibility of the periodicity of the microfilariae by reversing the sleeping and the waking habits of the infected human host. He also noted the coincidence of the biting hours of the ...
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