Vector Competence of &lt;I&gt;Culex pipiens molestus&lt;/I&gt; (Diptera: Culicidae) from Taiwan for a Sympatric Strain of Japanese Encephalitis Virus

Weng, Ming-Hui; Lien, Jin‐Cherng; Lin, Cheng Wen; Yao, Chen‐Wen

doi:10.1603/0022-2585-37.5.780

Cited by 25 publications

(18 citation statements)

References 15 publications

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“…Several species of Culex mosquitoes have become infected in the laboratory at relatively low viral titers (i.e., as low as 10 PFU). 37 Varied inoculum doses in the present study were unintentional, and were likely in part caused by the effects of a single freeze-thaw cycle. In addition to differing viral doses, previous arbovirus experimental studies in birds compared the inoculation method (needle versus mosquito), with no differences observed in magnitude or duration of viremia in chickens or house finches.…”

Section: Discussionmentioning

confidence: 76%

North American Birds as Potential Amplifying Hosts of Japanese Encephalitis Virus

Nemeth¹,

Bosco‐Lauth²,

Oesterle³

et al. 2012

The American Society of Tropical Medicine and Hygiene

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Abstract. Japanese encephalitis virus (JEV) is an emerging arbovirus, and inter-continental spread is an impending threat. The virus is maintained in a transmission cycle between mosquito vectors and vertebrate hosts, including birds. We detected variation in interspecies responses among North American birds to infection with strains of two different JEV genotypes (I and III). Several native North American passerine species and ring-billed gulls had the highest average peak viremia titers after inoculation with a Vietnamese (genotype I) JEV strain. Oral JEV shedding was minimal and cloacal shedding was rarely detected. The majority of birds, both viremic (72 of 74; 97.3%) and non-viremic (31 of 37; 83.8%), seroconverted by 14 days post-inoculation and West Nile virus-immune individuals had cross-protection against JEV viremia. Reservoir competence and serologic data for a variety of avian taxa are important for development of JEV surveillance and control strategies and will aid in understanding transmission ecology in the event of JEV expansion to North America.

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Section: Discussionmentioning

confidence: 76%

North American Birds as Potential Amplifying Hosts of Japanese Encephalitis Virus

Nemeth¹,

Bosco‐Lauth²,

Oesterle³

et al. 2012

The American Society of Tropical Medicine and Hygiene

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“…annulirostris was similar to the titer of 10 5.18Ϯ0.04 plaque forming units/mosquito reported for a Taiwan strain of Cx. tritaeniorhynchus (Weng et al 2000).…”

Section: Discussionmentioning

confidence: 99%

Vector Competence of Australian Mosquitoes (Diptera: Culicidae) for Japanese Encephalitis Virus

et al. 2003

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Australian mosquitoes were evaluated for their ability to become infected with and transmit a Torres Strait strain of Japanese encephalitis virus. Mosquitoes, which were obtained from either laboratory colonies and collected using Centers for Disease Control and Prevention light traps baited with CO2 and octenol or reared from larvae, were infected by feeding on a blood/sucrose solution containing 10(4.5 +/- 0.1) porcine stable-equine kidney (PS-EK) tissue culture infectious dose50/mosquito of the TS3306 virus strain. After 14 d, infection and transmission rates of 100% and 81%, respectively, were obtained for a southeast Queensland strain of Culex annulirostris Skuse, and 93% and 61%, respectively, for a far north Queensland strain. After 13 or more days, infection and transmission rates of > 90% and > or = 50%, respectively, were obtained for southeast Queensland strains of Culex sitiens Wiedemann and Culex quinquefasciatus Say, and a far north Queensland strain of Culex gelidus Theobald. Although infection rates were > 55%, only 17% of Ochlerotatus vigilax (Skuse) and no Cx. quinquefasciatus, collected from far north Queensland, transmitted virus. North Queensland strains of Aedes aegypti L., Ochlerotatus kochi (Dönitz), and Verrallina funerea (Theobald) were relatively refractory to infection. Vertical transmission was not detected among 673 F1 progeny of Oc. vigilax. Results of the current vector competence study, coupled with high field isolation rates, host feeding patterns and widespread distribution, confirm the status of Cx. annulirostris as the major vector of Japanese encephalitis virus in northern Australia. The relative roles of other species in potential Japanese encephalitis virus transmission cycles in northern Australia are discussed.

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“…For a specific disease, WNV, the vector competence of several species has been explored, for example, of Culex spp. (Weng et al 2000;Vaidyanathan and Scott 2007;Balenghien et al 2007;Reisen et al 2006), of Culiseta and Culex spp. (Reisen et al 2006) and of Californian species including Culex spp., Ochlerotatus spp.…”

Section: Vector Competencementioning

confidence: 99%

Wetlands and mosquitoes: a review

Dale

Knight

2008

Wetlands Ecol Manage

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This review brings together information on mosquitoes, the diseases they transmit and the wetlands that provide habitats for the immature stages (eggs and larvae). Wetland values are mentioned, though the main literature on this does not generally overlap the mosquito issue. Mosquito management is overviewed to include: the use of larvicides, source reduction in intertidal wetlands and management in freshwater systems. There is not a great deal of information on mosquitoes and freshwater systems, except for constructed wetlands and they are considered separately. We then consider restoration mainly in the context of wetlands that have been the subject of habitat modification for mosquito control. Land use and climate change, as they affect mosquitoes and the diseases they transmit, are also reviewed, as this will affect wetlands via management activities. Finally the review addresses the critical issue of balancing health, both human and environmental, in an adaptive framework. It concludes that there is a need to ensure that both mosquito and wetland management communicate and integrate to sustain wetland and human health.

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Vector Competence of <I>Culex pipiens molestus</I> (Diptera: Culicidae) from Taiwan for a Sympatric Strain of Japanese Encephalitis Virus

Cited by 25 publications

References 15 publications

North American Birds as Potential Amplifying Hosts of Japanese Encephalitis Virus

North American Birds as Potential Amplifying Hosts of Japanese Encephalitis Virus

Vector Competence of Australian Mosquitoes (Diptera: Culicidae) for Japanese Encephalitis Virus

Wetlands and mosquitoes: a review

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