Vector Competence of Selected North American Culex and Coquillettidia Mosquitoes for West Nile Virus

Sardelis, Michael R.; Turell, Michael J.; Dohm, David J.; O’Guinn, Monica L.

doi:10.3201/eid0706.010617

Cited by 330 publications

(266 citation statements)

References 25 publications

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“…nigripalpus Theobald, another mosquito species associated with West Nile virus transmission in the USA (Godsey et al 2005, Sardelis et al 2001, were attracted to tetradecanoic acid, dimethyl disulfide and methyl propyl disulfide and landed on casings treated with lactic acid, octadecanoic acid, dimethyl trisulfide, ethyl disulfide or methyl propyl disulfide, although responses to bovine blood were low (Allan et al 2006a). Culex nigripalpus and Cx.…”

Section: Host-seeking Behaviour Of Mosquitoes: Responses To Olfactorymentioning

confidence: 99%

Olfaction in vector-host interactions

Takken¹,

Knols²

2010

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Section: Host-seeking Behaviour Of Mosquitoes: Responses To Olfactorymentioning

confidence: 99%

Olfaction in vector-host interactions

Takken¹,

Knols²

2010

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“…Vector competence for WNV among North American Culex species varies considerably, with Cx. quinquefasciatus typically ranking among the least efficient laboratory vectors (Sardelis et al, 2001;Goddard et al, 2002;Reisen et al, 2005). However, extensive variation in vector competence for WNV has been reported among geographic populations of Cx.…”

Section: Discussioǹmentioning

confidence: 99%

“…However, extensive variation in vector competence for WNV has been reported among geographic populations of Cx. quinquefasciatus (Sardelis et al, 2001;Goddard et al, 2002). In California, transmission rates (based on detection of expectorated virus) for Cx.…”

Section: Discussioǹmentioning

confidence: 99%

Experimental Infection of Hawai`i `Amakihi (Hemignathus Virens) With West Nile Virus and Competence of a Co-Occurring Vector, Culex Quinquefasciatus: Potential Impacts on Endemic Hawaiian Avifauna

LaPointe

Hofmeister

Atkinson

et al. 2009

Journal of Wildlife Diseases

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ABSTRACT:Introduced mosquito-borne avian disease is a major limiting factor in the recovery and restoration of native Hawaiian forest birds. Annual epizootics of avian pox (Avipoxvirus) and avian malaria (Plasmodium relictum) likely led to the extinction of some species and continue to impact populations of susceptible Hawaiian honeycreepers (Drepanidinae). The introduction of a novel pathogen, such as West Nile virus (WNV), could result in further population declines and extinctions. During September and October 2004, we infected Hawai`i`Amakihi (Hemignathus virens) with a North American isolate of WNV by needle inoculation and mosquito bite to observe susceptibility, mortality, and illness in this endemic passerine, and to determine the vector competence of the co-occurring, introduced mosquito Culex quinquefasciatus. All experimentally infected Hawai`i`Amakihi became viremic, with a mean titer .10 5 plaque-forming units (PFU)/ ml, and they experienced clinical signs ranging from anorexia and lethargy to ataxia. The fatality rate among needle-inoculated Hawai`i`Amakihi (n516) was 31.3%, but mortality in free-ranging birds is likely to increase due to predation, starvation, thermal stress, and concomitant infections of avian malaria and pox. Surviving Hawai`i`Amakihi seem to clear WNV from the peripheral blood by 7-10 days postinfection (DPI), and neutralizing antibodies were detected from 9 to 46 DPI. In transmission trials, Hawaiian Cx. quinquefasciatus proved to be a competent vector and Hawai`ì Amakihi an adequate amplification host of WNV, suggesting that epizootic WNV could readily become an additional limiting factor of some native Hawaiian bird populations.

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“…However, within six years, WNV had become endemic across the USA [13]. Interestingly, while the WNV transmission route is limited to two mosquito genera [32] (Aedes and Culex) and has a limited effective host range, RVFV is readily transmitted through a broad range of mosquito genera including Aedes, Anopheles, Culex, Eretmapoites and Mansonia, and by other vectors including sand flies [33]. Importantly, RVFV has a much broader effective host-range compared to WNV, capable of causing severe disease in sheep, goat, cattle, water buffalo, and humans.…”

Section: Introductionmentioning

confidence: 99%

Rift Valley Fever Virus: A Real Bioterror Threat

Mandell¹,

Flick²

2011

J Bioterr Biodef

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Rift Valley fever virus is recognized as an important bioterror and agroterror threat to Western countries including the United States. Once introduced, the virus would be readily spread by native mosquito populations and potentially become endemic. While infection often results in severe morbidity and mortality in both humans and livestock, there are currently no FDA or USDA-licensed vaccines. The development of effective countermeasures and implementing surveillance and diagnostic capabilities are critical. Ultimately, the presence of RVFV would lead to severe long-term negative impacts for healthcare, agricultural and travel economic sectors.

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Vector Competence of Selected North American Culex and Coquillettidia Mosquitoes for West Nile Virus

Cited by 330 publications

References 25 publications

Olfaction in vector-host interactions

Olfaction in vector-host interactions

Experimental Infection of Hawai`i `Amakihi (Hemignathus Virens) With West Nile Virus and Competence of a Co-Occurring Vector, Culex Quinquefasciatus: Potential Impacts on Endemic Hawaiian Avifauna

Rift Valley Fever Virus: A Real Bioterror Threat

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