نتایج جستجو برای: culex quinquefasciatus

تعداد نتایج: 4493  

Journal: :Saudi journal of biological sciences 2013
Othman Wan-Norafikah Wasi Ahmad Nazni Han Lim Lee Pawanchee Zainol-Ariffin Mohd Sofian-Azirun

The resistance status towards permethrin among the laboratory strain, the permethrin-selected strain and four field strains of Culex quinquefasciatus collected in Kuala Lumpur, Malaysia was determined using three standard laboratory methods: WHO larval bioassay, WHO adult bioassay and biochemical microplate assay. Cx. quinquefasciatus permethrin-selected strain larvae were the least susceptible...

Journal: :journal of arthropod-borne diseases 0
h dehghan department of medical entomology and parasitology, school of medical sciences, tarbiat modares university, tehran, iran j sadraei department of medical entomology and parasitology, school of medical sciences, tarbiat modares university, tehran, iran sh moosa-kazemi department of medical entomology and vector control, school of public health, tehran university of medical sciences, tehran, iran

background: culex pipiens complex shows variations in morphological and biological characters including differ­ent biological forms and has medical and veterinary importance. because of having morphological variations, some­times it is not easy to separate this species from cx. quinquefasciatus and cx. torrentium . the aim of this study was to   identify the   culex pipiens complex species in o...

Journal: :Journal of the American Mosquito Control Association 2012
Van Lun Low Chee Dhang Chen Han Lim Lee Phaik Eem Lim Cherng Shii Leong Mohd Sofian-Azirun

A standardized larval dipping method was used to determine the infestation rates of Culex and other species of mosquitoes in stagnant water at 20 residential areas. This study also examined the associations between Culex distribution and various habitat characteristics across all states in Malaysia. Identification of 7,848 specimens yielded 6 species dominated by Culex quinquefasciatus (82.74%)...

Journal: :Revista do Instituto de Medicina Tropical de Sao Paulo 2012
Sirlei Antunes Morais Fábio de Almeida Lincoln Suesdek Mauro Toledo Marrelli

Culex quinquefasciatus is a vector of human pathogens, including filarial nematodes and several viruses. Although its epidemiological relevance is known to vary across geographical regions, an understanding of its population genetic structure is still incipient. In light of this, we evaluated the genetic diversity of Cx. quinquefasciatus and Cx. pipiens x Cx. quinquefasciatus hybrids collected ...

Journal: :Revista do Instituto de Medicina Tropical de São Paulo 2015

Journal: :Journal of medical entomology 2014
Alexander T Ciota Amy C Matacchiero A Marm Kilpatrick Laura D Kramer

Climatic changes forecasted in the coming years are likely to result in substantial alterations to the distributions and populations of vectors of arthropod-borne pathogens. Characterization of the effect of temperature shifts on the life history traits of specific vectors is needed to more accurately define how such changes could impact the epidemiological patterns of vector-borne disease. Her...

Journal: :The American journal of tropical medicine and hygiene 2010
Goudarz Molaei Robert F Cummings Tianyun Su Philip M Armstrong Greg A Williams Min-Lee Cheng James P Webb Theodore G Andreadis

Southern California remains an important focus of West Nile virus (WNV) activity, with persistently elevated incidence after invasion by the virus in 2003 and subsequent amplification to epidemic levels in 2004. Eco-epidemiological studies of vectors-hosts-pathogen interactions are of paramount importance for better understanding of the transmission dynamics of WNV and other emerging mosquito-b...

Journal: :Genetics 1972
D J Merrell

Data are presented for 2,393 progeny from a number of crosses related to a study in ecological genetics of the Burnsi and Kandiyohi polymorphisms in natural populations of the leopard frog, Rana pipiens. No significant differences in viability were found between wild-type homozygotes (+/+) and Burnsi heterozygotes (B/+) or homozygotes (B/B). Similarly, no difference in viability was found betwe...

2017
Kevin J. Emerson Robert L. Glaser

Wolbachia pipientis, a bacterial symbiont infecting arthropods and nematodes, is vertically transmitted through the female germline and manipulates its host's reproduction to favor infected females. Wolbachia also infects somatic tissues where it can cause nonreproductive phenotypes in its host, including resistance to viral pathogens. Wolbachia-mediated phenotypes are strongly associated with ...

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