Abundance, Parity, and Japanese Encephalitis Virus Infection of Mosquitoes (Diptera: Culicidae) in Sepang District, Malaysia

Vythilingam, Indra; Oda, Kazumasa; Mahadevan, S; Abdullah, Ghani; Thim, Chan Seng; Hong, Choo Choon; Vijayamalar, B; Sinniah, M; Igarashi, Akira

doi:10.1093/jmedent/34.3.257

Cited by 47 publications

(38 citation statements)

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“…quinquefasciatus in Asia, although infection rates generally were low when compared with Cx. tritaeniorhynchus (Vythilingam et al 1997, Weng et al 1999. However, no isolates have been obtained from this species in Australia, as only low numbers of Cx.…”

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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Section: Discussionmentioning

confidence: 99%

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

et al. 2003

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“…Weather factors, including temperature and precipitation, have been reported to drive the JE transmission by affecting the mosquito life cycle including the development time of immature mosquito stages and mosquito density (Gingrich et al, 1992;Murty et al, 2010;Olson et al, 1983;Reisen et al, 1976;Vythilingam et al, 1997). A higher temperature has been found to increase the rates of virus replication and dissemination (Kilpatrick et al, 2008), and results in a shorter time from mosquito infection to transmission of the virus to humans (Takahashi, 1976).…”

Section: Introductionmentioning

confidence: 99%

How environmental conditions impact mosquito ecology and Japanese encephalitis: An eco-epidemiological approach

Tian

Cazelles

et al. 2015

Environment International

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“…In Asian countries, Culex tritaeniorhynchus Giles, Culex vishnui s.l. Theobald, Culex fuscocephala Theobald, and Culex gelidus Theobald are known JE vectors (Van Peenten et al 1975, Gingrich et al 1992, Reuben et al 1994, Vythilingam et al 1997, Stoops et al 2008. Species in the Culex vishnui subgroup, such as Cx.…”

Section: Introductionmentioning

confidence: 99%

Mosquitoes and Their Potential Predators In Rice Agroecosystems of the Mekong Delta, Southern Vietnam

Ohba

Huynh

et al. 2011

Journal of the American Mosquito Control Association

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Culex tritaeniorhynchus, Cx. gelidus, and Cx. quinquefasciatus, known vectors of Japanese encephalitis (JE), are distributed in rice agroecosystems in Asian countries. Very few integrated studies on the breeding habitats of rice-field mosquitoes, including JE vectors, have been conducted in Vietnam. We investigated the mosquito fauna and potential predators in 8 rice growing areas in the Mekong Delta region of southern Vietnam, during the wet and dry seasons of 2009. Mosquitoes and their predators were collected from a variety of aquatic habitats (rice fields, ponds, wetlands, shrimp ponds, ditches, canals, and rivers). We collected 936 Culex spp. (354 Cx. tritaeniorhynchus, 240 Cx. vishnui s.l., 189 Cx. fuscocephala, and 42 Cx. gelidus), 33 Uranotaenia, 25 Anopheles, and 9 Mimomyia (4 Mi. chamberlaini) in the dry season. During the rainy season, we collected 1,232 Culex spp. (132 Cx. vishnui s.l., 66 Cx. tritaeniorhynchus, 9 Cx. gelidus, 4 Cx. fuscocephala, and 2 Cx. bitaeniorhynchus), 236 Anopheles spp. (40 An. vagus and 1 An. sinensis), and 7 Uranotaenia (3 Ur. lateralis). Heteroptera such as Micronecta, Veliidae, and Pleidae were abundant and widely distributed in both seasons. Based on a stepwise generalized linear model, the abundance of mosquitoes and their predators in rice fields was high when the rice plant length was short and water depth was shallow. Therefore, the use of insecticides during the earlier stages of rice growth should be avoided in order to preserve the predator populations.

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Abundance, Parity, and Japanese Encephalitis Virus Infection of Mosquitoes (Diptera: Culicidae) in Sepang District, Malaysia

Cited by 47 publications

References 0 publications

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

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

How environmental conditions impact mosquito ecology and Japanese encephalitis: An eco-epidemiological approach

Mosquitoes and Their Potential Predators In Rice Agroecosystems of the Mekong Delta, Southern Vietnam

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