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Diptera

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1801. Double infection of heteroserotypes of dengue viruses in field populations of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) and serological features of dengue viruses found in patients in southern Thailand. (Abstract)

Double infection of heteroserotypes of dengue viruses in field populations of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) and serological features of dengue viruses found in patients in southern Thailand. In order to understand more about the epidemiology of DHF, a study of the type of dengue viruses and vectors under natural conditions was carried out. Mosquito vectors in the field and the serum of DHF patients in southern Thailand were examined. The two mosquito species

2006 Southeast Asian Journal of Tropical Medicine and Public Health

1802. Entomological studies of Phlebotomus papatasi and P. sergenti (Diptera: Psychodidae) as vectors of cutaneous leishmaniasis in Shiraz, Iran. (Abstract)

Entomological studies of Phlebotomus papatasi and P. sergenti (Diptera: Psychodidae) as vectors of cutaneous leishmaniasis in Shiraz, Iran. Leishmaniasis is considered endemic in 82 countries, including Iran. In order to control the vectors of leishmaniasis, entomological studies, such as fauna, seasonal abundance, nocturnal activity, sex ratio, resting site, etc, are necessary. In this investigation, the species composition of sandflies. and the seasonality and nocturnal activity, sex ratio

2006 Southeast Asian Journal of Tropical Medicine and Public Health

1803. Differential tolerance of two morphological variants of Culex tritaeniorhynchus (Diptera: Culicidae), a Japanese encephalitis vector, to pyrethroid insecticides in Mysore, India. (Abstract)

Differential tolerance of two morphological variants of Culex tritaeniorhynchus (Diptera: Culicidae), a Japanese encephalitis vector, to pyrethroid insecticides in Mysore, India. Five synthetic pyrethroids, deltamethrin, cypermethrin, permethrin, alpha-cypermethrin, and lambdacyhalothrin, were tested on the larvae of 2 morphological variants of Cx. tritaeniorhynchus collected from Mysore City (ground pools) and outside Mysore (paddy fields), in Karnataka State, India. The morphological

2006 Southeast Asian Journal of Tropical Medicine and Public Health

1804. Characterization of ITS2 rDNA of Anopheles philippinensis and Anopheles nivipes (Diptera: Culicidae) from north-east India. (Abstract)

Characterization of ITS2 rDNA of Anopheles philippinensis and Anopheles nivipes (Diptera: Culicidae) from north-east India. Anopheles (Cellia) philippinensis Ludlow and Anopheles (Cellia) nivipes (Theobald) are two closely related, morphologically very similar, mosquito species in the Annularis group, which play a supportive role in malaria transmission in north-east India. We amplified and performed sequence analysis for the internal transcribed spacer 2 (ITS2) locus of ribosomal DNA (rDNA

2006 Southeast Asian Journal of Tropical Medicine and Public Health

1805. Simulated field evaluation of the efficacy of two formulations of diflubenzuron, a chitin synthesis inhibitor against larvae of Aedes aegypti (L.) (Diptera: Culicidae) in water-storage containers. (Abstract)

Simulated field evaluation of the efficacy of two formulations of diflubenzuron, a chitin synthesis inhibitor against larvae of Aedes aegypti (L.) (Diptera: Culicidae) in water-storage containers. Tablet (40 mg a.i./tablet) and granular (2% a.i.) formulations of diflubenzuron, a chitin synthesis inhibitor, insect growth regulator, were evaluated for larvicidal efficacy against the larvae of Aedes aegypti (L.) in water-storage containers under field conditions in Thailand. Each formulation

2007 Southeast Asian Journal of Tropical Medicine and Public Health

1806. A new densovirus isolated from the mosquito Toxorhynchites splendens (Wiedemann) (Diptera: Culicidae). (Abstract)

A new densovirus isolated from the mosquito Toxorhynchites splendens (Wiedemann) (Diptera: Culicidae). A new densovirus was isolated and characterized in laboratory strains of Toxorhynchites splendens. The virus was detected by polymerase chain reaction (PCR) from mosquitoes reared in our laboratory. PCR fragments from each mosquito were compared by single strand conformation polymorphism (SSCP) assay and found to be indistinguishable. Thus, it is likely the densoviruses from these mosquitoes

2007 Southeast Asian Journal of Tropical Medicine and Public Health

1807. Seasonal variation of Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae) in endemic area of visceral leishmaniasis, Campo Grande, state of Mato Grosso do Sul, Brazil. (Abstract)

Seasonal variation of Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae: Phlebotominae) in endemic area of visceral leishmaniasis, Campo Grande, state of Mato Grosso do Sul, Brazil. The seasonal distribution of Lutzomyia longipalpis was studied in two forested and five domiciliary areas of the urban area of Campo Grande; MS, from December 2003 to November 2005. Weekly captures were carried out with CDC light traps positioned on ground and in the canopy inside a residual forest

2007 Acta Tropica

1808. Indoor collections of the Anopheles funestus group (Diptera: Culicidae) in sprayed houses in northern KwaZulu-Natal, South Africa. Full Text available with Trip Pro

Indoor collections of the Anopheles funestus group (Diptera: Culicidae) in sprayed houses in northern KwaZulu-Natal, South Africa. Insecticide resistance in malaria vector mosquitoes presents a serious problem for those involved in control of this disease. South Africa experienced a severe malaria epidemic during 1999/2000 due to pyrethroid resistance in the major vector Anopheles funestus. Subsequent monitoring and surveillance of mosquito populations were conducted as part of the malaria

2007 Malaria journal

1809. Larval habitats of Anopheles gambiae s.s. (Diptera: Culicidae) influences vector competence to Plasmodium falciparum parasites. Full Text available with Trip Pro

Larval habitats of Anopheles gambiae s.s. (Diptera: Culicidae) influences vector competence to Plasmodium falciparum parasites. The origin of highly competent malaria vectors has been linked to productive larval habitats in the field, but there isn't solid quantitative or qualitative data to support it. To test this, the effect of larval habitat soil substrates on larval development time, pupation rates and vector competence of Anopheles gambiae to Plasmodium falciparum were examined.Soils were

2007 Malaria journal

1810. Effect of microwave irradiation on the blow fly Chrysomya megacephala (F.) (Diptera: Calliphoridae). (Abstract)

Effect of microwave irradiation on the blow fly Chrysomya megacephala (F.) (Diptera: Calliphoridae). Chrysomya megacephala (F) is a blow fly species of medical importance, being pestiferous and a mechanical carrier of various microorganisms to human food. Various strategies to reduce the fly population in endemic areas are needed. We investigated the effects of microwaves at 2,450 MHz, with third-instar exposure times of 7, 10, 15, 30 and 60 seconds on the larvae. Survival of the larvae

2005 Southeast Asian Journal of Tropical Medicine and Public Health

1811. A preliminary study on in vitro transmission of Dirofilaria immitis infective stage larvae by Aedes aegypti (L.) (Diptera: Culicidae). (Abstract)

A preliminary study on in vitro transmission of Dirofilaria immitis infective stage larvae by Aedes aegypti (L.) (Diptera: Culicidae). This study was performed to study an in vitro transmission of infective stage larvae from the mosquito proboscis. There were five experiments with 949 mosquitoes. Liverpool strain of Aedes aegypti (L.) were used in this study. They were allowed to feed on D. immitis infected dogs with different microfilarial levels which were 1,650, 1,950, 9,000, 9,250

2005 Southeast Asian Journal of Tropical Medicine and Public Health

1812. Longevity of Aedes aegypti (Diptera: Culicidae) compared in cages and field under ambient conditions in rural Thailand. (Abstract)

Longevity of Aedes aegypti (Diptera: Culicidae) compared in cages and field under ambient conditions in rural Thailand. Aedes aegypti (L.) were exposed to all of the physiological stresses of a natural environment, without mortality from predation or from the defensive behavior of bitten hosts. Each replicate consisted of four cages containing 50 male and 50 female, locally reared Ae. aegypti. The cages were placed in the bedroom and kitchen of a typical Thai house in the village of Hua Samrong

2006 Southeast Asian Journal of Tropical Medicine and Public Health

1813. Discrimination of Aedes aegypti (Diptera: Culicidae) laboratory lines based on wing geometry. (Abstract)

Discrimination of Aedes aegypti (Diptera: Culicidae) laboratory lines based on wing geometry. Recent techniques of geometric morphometrics were applied to the study of four Thailand laboratory lines of the dengue vector Aedes aegypti. These lines differed by their geographic origin and the number of generations spent in the laboratory. Using a phase contrast microscope, a set of sixteen landmarks of the wings could be identified. A subsequent Procrustean superposition analysis produced

2005 Southeast Asian Journal of Tropical Medicine and Public Health

1814. Laboratory and semi-field evaluation of Mosquito Dunks against Aedes aegypti and Aedes albopictus larvae (Diptera: Culicidae). (Abstract)

Laboratory and semi-field evaluation of Mosquito Dunks against Aedes aegypti and Aedes albopictus larvae (Diptera: Culicidae). Laboratory bioassays and semi-field studies were conducted on the efficacy and longevity of Mosquito Dunks (7,000 ITU/mg Bti) in order to determine the concentration-response relationship and the effectiveness on the potency of the Bti product against Aedes mosquito species based on the WHO protocol standard methods and to determine the longevity of release

2006 Southeast Asian Journal of Tropical Medicine and Public Health

1815. Modeling the impact of variable climatic factors on the crossover of Culex restauns and Culex pipiens (Diptera: culicidae), vectors of West Nile virus in Illinois. (Abstract)

Modeling the impact of variable climatic factors on the crossover of Culex restauns and Culex pipiens (Diptera: culicidae), vectors of West Nile virus in Illinois. The aim of this study was to model the impact of temperature on the timing of the seasonal shift in relative proportion of Culex restuans Theobald and Culex pipiens L. in Illinois. The temporal pattern of West Nile virus (WNV) and St. Louis encephalitis virus transmission in the midwest exhibits a late summer to early fall peak

2006 American Journal of Tropical Medicine & Hygiene

1816. Microsatellite and mitochondrial genetic differentiation of Anopheles arabiensis (Diptera: Culicidae) from western Kenya, the Great Rift Valley, and coastal Kenya. (Abstract)

Microsatellite and mitochondrial genetic differentiation of Anopheles arabiensis (Diptera: Culicidae) from western Kenya, the Great Rift Valley, and coastal Kenya. The population genetic structure of the African malaria vector Anopheles arabiensis from western Kenya, the Great Rift Valley, and coastal Kenya was investigated using 12 microsatellite loci and a partial sequence of mtDNA dehydrogenase gene subunit 5 (ND5). The mean number of alleles and the observed heterozygosity were similar

2005 American Journal of Tropical Medicine & Hygiene

1817. Male sex pheromones and the phylogeographic structure of the Lutzomyia longipalpis species complex (Diptera: Psychodidae) from Brazil and Venezuela. (Abstract)

Male sex pheromones and the phylogeographic structure of the Lutzomyia longipalpis species complex (Diptera: Psychodidae) from Brazil and Venezuela. Lutzomyia longipalpis, a sibling complex, is the main vector of Leishmania chagasi/infantum. Discriminating between siblings is important as they may differ in vectorial capacity. Lutzomyia longipalpis populations display distinct male sex pheromone chemotypes. We investigated the phylogeographic pattern of variation at microsatellite loci from 11

2005 American Journal of Tropical Medicine & Hygiene

1818. Finding needles in the haystack: single copy microsatellite loci for Aedes japonicus (Diptera: Culicidae). (Abstract)

Finding needles in the haystack: single copy microsatellite loci for Aedes japonicus (Diptera: Culicidae). First identified in three North American states in 1998, Aedes japonicus japonicus, the Asian bush mosquito, has since spread to 21 states, plus Ontario in Canada, northern France, and Belgium. Analyses of the introduction and expansion of this potentially deadly disease vector will be radically improved by including powerful genetic markers like microsatellites. Useful microsatellite loci

2005 American Journal of Tropical Medicine & Hygiene

1819. Application of an alternative Aedes species (Diptera: culicidae) surveillance method in Botucatu City, Sao Paulo, Brazil. (Abstract)

Application of an alternative Aedes species (Diptera: culicidae) surveillance method in Botucatu City, Sao Paulo, Brazil. One of the main problems with dengue is the control of Aedes aegypti, its major vector. In Brazil, the current control program for Ae. aegypti and Aedes albopictus populations includes larval density surveys. An interesting alternative is the use of a distinct index, the Premise Condition Index (PCI). This tool relates conditions of property, such as houses and yards

2005 American Journal of Tropical Medicine & Hygiene

1820. Detection and characterization of Wolbachia infections in Wuchereria bancrofti (Spirurida: Onchocercidae) var. pacifica and Aedes (Stegomyia) polynesiensis (Diptera: Culicidae). (Abstract)

Detection and characterization of Wolbachia infections in Wuchereria bancrofti (Spirurida: Onchocercidae) var. pacifica and Aedes (Stegomyia) polynesiensis (Diptera: Culicidae). Despite control programs based on mass drug administration (MDA) of microfilaricidal compounds, Bancroftian lymphatic filariasis remains a problem in French Polynesia. For an alternative strategy to MDA, we investigated the potential role of Wolbachia to control filarial transmission. Wolbachia are intracellular alpha

2005 American Journal of Tropical Medicine & Hygiene

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