PMID(sorted descending)
effect of apholate and metepa on aedes aegypti infected with venezuelan equine encephalomyelitis virus. 19674283632
a genetic study of apholate resistance in aedes aegypti. 19724263864
activity and rhythm of atpases in larvae of the mosquito, aedes aegypti l. 19704250596
[yellow fever and eradication of aedes aegypti]. 19694238707
[organization and administration of aedes aegypti control and eradication programs]. 19684234278
[aedes aegypti and yellow fever]. 19684234277
the duration of egg, larval and pupal stages of culex pipiens fatigans in rangoon, burma.laboratory experiments to determine the duration of the immature stages of culex pipiens fatigans were carried out because such information is important from the point of view of control by larvicides. at a temperature of 25.1 degrees c+/-0.7 degrees c the mean incubation period is 27.11+/-0.57 hours. females spend a longer time in the pupal stage than males (34.16+/-0.74 hours and 32.95+/-0.75 hours, respectively, at 28.6 degrees c+/-0.8 degrees c; there is no 24-hour pupating or emerging rhyth ...19674227199
[kinetic study of the metabolic effects of a blood meal in aedes aegypti]. 19734208691
larval mortality of culex tarsalis and aedes aegypti when reared with different concentrations of tetrahymena pyriformis. 19734198151
occurrence of heat-dissociable ribosomal rna in insects: the presence of three polynucleotide chains in 26 s rna from cultured aedes aegypti cells. 19734197338
[on histochemistry and histology of the midintestine of the aedes aegypti and anopheles stephensi in reference to the blood digestion]. 19684176382
the neurosecretory cells of the brain of aedes aegypti in relation to larval molt, metamorphosis and ovarian development. 19684176378
failure of chlorine and sodium chloride to induce resistance in aedes aegypti to lindane, dieldrin, and ddt. 19654159294
survey of the relative prevalence of potential yellow fever vectors in north-west nigeria.the yellow fever epidemic in nigeria in 1969-70 emphasized the lack of data concerning the possible importance of aedes aegypti and other stegomyia mosquitos as vectors. an entomological survey was therefore undertaken in september 1973 in 6 areas in the north-west of nigeria to determine the prevalence of stegomyia populations in the villages. an examination of over 6 700 water pots showed that 11-53% contained a. aegypti larvae, and in some areas larvae of a. vittatus were found in up to 18% o ...19744156499
the pattern of flight muscle damage in relation to the distribution of developing filarial larvae in aedes aegypti and mansonia uniformis. 19744155607
interaction between the predator toxorhynchites brevipalpis and its prey aedes a circumscribed area in tanzania where the predacious larvae of toxorhynchites brevipalpis were particularly abundant, it was found that water-filled tires and tins containing toxorhynchites larvae had fewer larvae of aedes aegypti than those without the predator larvae. the peaks of infestation with toxorhynchites larvae occurred almost a month later than the peaks of a. aegypti infestation. cannibalism was observed among the predator larvae in these containers.19734152925
host preference in aedes (stegomyia) mosquitoes in uganda. ii. studies on indoor and outdoor biting and resting behaviour with special reference to aedes aegypti l. 19744152901
growth of venezuelan encephalitis virus and disapperance of coxsackie a, rous sarcoma, herpes simplex and vaccinia viruses following inoculation of aedes aegypti and other mosquitoes. 19744152894
inheritance of susceptibility to dirofilaria immitis infection in aedes aegypti. 19744152306
dopa decarboxylase activity in aedes aegypti: a preadult profile and its subsequent correlation with ovarian development. 19744151553
adult population estimate of toxorhynchites estimate of the numbers of adults of the predacious mosquito toxorhynchites brevipalpis was made in a 1-ha biotope in dar es salaam, tanzania, where the population of its larval prey aedes aegypti was high, by means of the mark-release-recapture method. two months after the end of the rainy season, the number of adults was estimated to be 3 500-about 6 times the number of adult a. aegypti in the biotope.19734150432
laboratory colonization of toxorhynchites brevipalpis.toxorhynchites brevipalpis, a predator on larvae of aedes aegypti and other mosquitos, was successfully colonized in the laboratory. at 25 degrees c, embryonic development was completed within 50 hours of oviposition, while larval and pupal development together took a further 27-41 days. the adult mosquitos mated in cages as small as 15x15x15 cm, and the embryonated eggs were obtained 6-31 days after the adults emerged.19734149530
ecological studies on the breeding of aedes aegypti and other mosquitos in shells of the giant african snail achatina fulica.the breeding of larvae of aedes aegypti, aedes simpsoni, and eretmapodites quinquevittatus in empty shells of achatina fulica was studied in the coastal zone of dar es salaam, tanzania. the average density of shells was estimated to be 228 per ha. from 11 to 35% were positive for mosquito larvae. a. aegypti were found in 82-84% of positive shells; a. simpsoni in 8-13%. on msasani peninsula, during the 3-month rainy season april-june 1970, the larval density of a. aegypti in shells was estimated ...19734148745
structure and function of the basal lamina and of the cell junctions in the midgut epithelium (stomach) of female aedes aegypti l.(insecta, diptera). 19734147872
aedes aegypti surveillance and control in the south pacific. 19744143238
x and y chromosomes of aedes aegypti (l.) distinguished by giemsa c-banding. 19744141301
vector capability of aedes aegypti mosquitoes for california encephalitis and dengue viruses at various temperatures. 19744132612
metabolism of aedes aegypti cells grown in vitro. ii. determination of cell viability. 20134131328
investigation of a virus disease of the densonucleosis type in a laboratory culture of aedes aegypti. 19734125849
synergism of insecticides by herbicides.the herbicides atrazine, simazine, monuron, and 2,4-d (2,4-dichlorophenoxyacetic acid) enhanced the toxicity of selected insecticides to drosophila melanogaster meigen, musca domestica l., and larvae of aedes aegypti l. the insecticides-nine organophosphorus compounds, two chlorinated hydrocarbons, and one carbamate-were used at dosages that resulted in low insect mortalities, while the herbicides by themselves were nontoxic. atrazine was most effective. with increasing amounts of this herbicide ...19734125047
electron microscopy of friend murine leukemia virus in the mid-gut of experimentally infected mosquitoes.after 30 and 78 hr, friend murine leukemia virus (flv) particles were detected by electron microscopy in the mid-gut lumen of the mosquitoes aedes aegypti (linnaeus) and anopheles stephensi liston which had fed on leukemia balb/c mice infected with flv. various developmental stages of the virions were observed within and on the surface of ingested blood cells, particularly young erythroblasts, as well as free in the lumen after budding. these preliminary findings indicate that flv continues to m ...19714108934
permeability of the ovarian follicle of aedes aegypti mosquitoes.the passage of tracers of various molecular weights into resting and vitellogenic ovarian follicles of aedes aegypti mosquitoes was studied ultrastructurally. the outermost layer of the follicular sheath (the basement lamina) is a coarse mechanical filter. it is freely permeable to particles with molecular weights ranging from 12,000 to 500,000 (i.e. cytochrome c, peroxidase, hemoglobin, catalase, ferritin, immunoglobulin (igg)-peroxidase, iron dextran and thorotrast) that have dimensions less t ...04104968
trypsin and chymotrypsin during metamorphosis in aedes aegypti and properties of the chymotrypsin. 19714101347
chikungunya virus in salivary glands of aedes aegypti (l.): an electron microscope study. 19704097196
comparison of three fenitrothion controlled-release formulations as larvicides for aedes aegypti (l.) (diptera: culicidae). 19854078135
egg maturation and ecdysiotropic activity in extracts of mosquito (aedes aegypti) heads.blood-fed, decapitated female aedes aegypti mosquitoes matured eggs when injected with an extract of heads, but non-blood-fed females did not. the response to head extract was optimal when the head was allowed to remain for 2 hr after feeding. a dose response to injected egg development neurosecretory hormone (ednh) was observed in vivo that was similar to in vitro dose responses previously reported. blood-fed decapitated females responded equally well to boiled or unboiled head extract. when bl ...19854065529
dengue and hepatic failure.dengue hemorrhagic fever/dengue shock syndrome is a serious manifestation of dengue fever, which is observed predominantly in the tropical regions of the west pacific and in southeast asia and is associated with secondary infections, mainly in children under age 15. a concomitant microangiopathic coagulopathy has been described; moreover, encephalopathy and even reye's syndrome have been rarely reported. this report describes a 51-year-old man with secondary dengue infection who presented with c ...19854061482
ultrastructure of midgut endocrine cells in the adult mosquito, aedes aegypti.the ultrastructure of endocrine cells in the midgut of the adult mosquito, aedes aegypti, resembled that of endocrine cells in the vertebrate gastro-intestinal tract. midgut endocrine cells, positioned basally in the epithelium as single cells, were cone-shaped and smaller than the columnar digestive cells. the most distinctive characteristic of endocrine cells was numerous round secretory granules along the lateral and basal plasma membranes where contents of the granules were released by exocy ...19854060146
[effect of mosquito contact with ddt and their susceptibility to the causative agent of malaria].the contact of aedes aegypti mosquitoes with ddt one hour prior to the infectious feeding results in a slight decrease of their susceptibility to plasmodium gallinaceum. the contact 24 hours prior to the infectious feeding does not affect the susceptibility of mosquitoes.19854047719
effect of dirofilaria immitis on blood meal size and fecundity in aedes aegypti (diptera: culicidae). 19854045936
ethyl-methanesulfonate-induced changes in filarial susceptibility in aedes aegypti (diptera: culicidae). 19854045933
transition from somatic to meiotic pairing and progressional changes of the synaptonemal complex in spermatocytes of aedes aegypti.aedes aegypti spermatocytes were reconstructed from electron micrographs. the species has tight somatic pairing of the chromosomes, and there are therefore no classical leptotene and zygotene stages, but rather a gradual transition from somatic pairing to meiotic pairing (= pachytene). the term "prepachytene" has been used for the transitory stage. the first visible sign of impending meiosis was a reorganization of the chromatin, which resulted in the formation of spaces (synaptic spaces) in the ...19854042770
argentophilic structures of spermatogenesis in the yellow fever mosquito.application of the silver-staining technique to air-dried chromosome preparations of the yellow fever mosquito, aedes aegypti, revealed the following: 1) intensely stained pericentromeric regions in all chromosomes including the y chromosome in spermatogonia, and during the primary and secondary spermatocytes; 2) the presence of prepachytene that were not reported earlier; 3) a nucleolus organizing region that persisted up to the late pachytene stage; and 4) rod or ring-like centrioles in pachyt ...20064031466
bioassays of bacillus sphaericus (strain 1593) against mosquitoes of public health importance in malaysia.the pathogenicity of bacillus sphaericus strain 1593 was tested against laboratory-reared larvae of four local species of mosquitoes of public health importance in malaysia; aedes aegypti, anopheles balabacensis, mansonia uniformis and culex quinquefasciatus. the bacteria was shake-cultured at 28 +/- 1 degrees c for three days, using glucose-yeast extract salts medium. after which, the spores and vegetative cells were harvested and stored at 4 degrees c before use. conditions for bioassays were ...19854023816
analysis of lipids by gas-liquid chromatography and complementary methods in four strains of aedes aegypti mosquitoes.fatty acid composition of total lipids, neutral lipids and phospholipids of strains of aedes aegypti were determined. the fatty acid composition of the strains differed quantitatively with regard to the relative percentage of commonly occurring fatty acids. gas-liquid chromatography of fatty acid methyl esters showed 18:1 (oleic or elaidic) to be the predominant fatty acid. the fatty acid was identified as oleic by argentation thin-layer chromatography. a modified colorimetric method was used to ...20134017543
response of domestic and peridomestic strains of aedes aegypti (diptera: culicidae) in new orleans, louisiana, usa, to organophosphate, organochlorine, and pyrethroid insecticides. 19854009625
failure to detect natural transovarial transmission of dengue viruses by aedes aegypti and aedes albopictus (diptera: culicidae). 19854009622
the effect of different types of skin surfaces on the transmission of brugia pahangi infective larvae by the mosquito aedes aegypti.the transmission of brugia pahangi from aedes aegypti into meriones unguiculatus was compared for four different skin surfaces (hairy, cloth, clean, greasy). unshaven jirds reduced the feeding avidity of infective mosquitoes. the loss of larvae from infective mosquitoes was greatest when these insects fed on "exposed" skin surfaces. significantly fewer infective larvae penetrated the host when infective mosquitoes fed on a jird through a thin layer of cloth.19853992643
[sensitivity of aedes aegypti infected with the malaria agent to ddt]. 19853990637
hormone-mediated formation of the endocytic complex in mosquito oocytes.the developmental events leading to oocyte competence to internalize proteins, and the hormonal control of these events in the mosquito aedes aegypti have been studied. the oocytes of newly eclosed females have an undifferentiated cortex. during previtellogenic development, a highly specialized endocytic complex, consisting of numerous coated vesicles and uncoated endosomes, microvilli, and, presumably, vitellogenin receptors, forms in the oocyte cortex. morphometric analysis and probes with a p ...19853988025
effect of selection for dichlorodiphenyltrichloroethane (ddt) resistance on the uptake and breakdown of ddt in aedes aegypti l.aedes aegypti larvae and adults were selected to high levels of resistance with dichlorodiphenyltrichloroethane (ddt) along separate lines. the larval-selected line showed three responses associated with larval resistance: increased detoxication of ddt by dehydrochlorination to dichlorodiphenyldichloroethane dde (demonstrated both in vivo and in vitro), increased tolerance to unmetabolised ("residual") ddt and, a reduction in uptake of ddt. larval selection caused very little change in adult res ...19853986671
characterization of refractoriness in aedes aegypti (diptera: culicidae) to infection by dirofilaria immitis. 19853981554
reduced productivity in tretamine-treated adult populations of aedes aegypti (diptera: culicidae). 19853981551
plasmodium gallinaceum: sporozoite activity in immune mosquito hemolymph.sporozoites of plasmodium gallinaceum are relatively inactive in hanks' balanced salt solution or in the hemolymph of the susceptible aedes aegypti mosquito. they become agitated and very active in the presence of the hemolymph of the innately immune mosquito, culex pipiens. sporozoites from the latter are more infective in chicks than the former. this behavior is likely the result of stimulation or irritation by the adverse environment.19853972059
mechanical transmission of rift valley fever virus by hematophagous diptera.experimental studies were conducted to determine if hematophagous diptera were capable of mechanical transmission of rift valley fever (rvf) virus to laboratory animals. all species tested (glossina morsitans, aedes aegypti, aedes taeniorhynchus, culex pipiens, stomoxys calcitrans, lutzomyia longipalpis, and culicoides variipennis) mechanically transmitted the virus to hamsters. mechanical transmission rates for g. morsitans ranged from 0-100%, with the probability of mechanical transmission pos ...19853970308
increased biting rate and reduced fertility in sporozoite-infected mosquitoes.because salivary function and blood location are impaired in sporozoite-infected mosquitoes, we determined whether such pathology also could lead to an increased biting rate. for 5 days, we compared relative daily biting rates of plasmodium gallinaceum sporozoite-infected mosquitoes (aedes aegypti) and noninfected mosquitoes with an olfactometer. mosquitoes then were exposed for 5 min to an anesthetized guinea pig. infected mosquitoes exhibited a significant increase in olfactometer response whi ...19863953943
peptide nature of two mosquito natriuretic factors.high-pressure liquid chromatography (hplc) of saline extracts of aedes aegypti heads yields three fractions (from a total of 108) that affect transepithelial voltage and/or fluid secretion in isolated aedes malpighian tubules. in this study we investigated the physical and chemical nature of the active materials in these fractions. gel-filtration chromatography revealed that the molecular weights of the three fractions were between 1,900 and 2,700. to test their thermostability the fractions wer ...19863953844
isolation of a relatively nontoxic 65-kilodalton protein inclusion from the parasporal body of bacillus thuringiensis subsp. israelensis.ultrastructural studies of the mosquitocidal bacterium bacillus thuringiensis subsp. israelensis revealed that the parasporal body contained three major inclusion types, designated types 1, 2, and 3, which could be differentiated on the basis of electron opacity and size and, to some extent, shape. the type-2 inclusion, which was of moderate electron density and often appeared as a bar-shaped polyhedral body, was isolated on nabr gradients from purified parasporal bodies and characterized by sod ...19863944061
dominant lethal effects of thiotepa in male aedes aegypti (diptera: culicidae). 19853925149
development of mansonella ozzardi in the liverpool strain of aedes aegypti. 19853914123
viability of mycobacterium leprae within the gut of aedes aegypti after they feed on multibacillary lepromatous patients: a study by fluorescent and electron microscopes. 19853908862
development of dirofilaria immitis third stage larvae (nematoda: filarioidea) in micropore chambers implanted into surrogate hosts.groups of 100 third stage larvae of dirofilaria immitis recovered from aedes aegypti were loaded into 250 microliters capacity micropore chambers (0.3 micron pore size) and implanted into the peritoneal cavity of mice, jirds, cotton rats and ferrets. in all hosts 74-87% of larvae moulted by 74 hours, with less than 5% mortality. the fourth stage worms recovered at 74 hours were cultured in vitro in l-15 (leibovitz) medium plus 20% foetal bovine serum with a dog sarcoma feeder cell line. after 96 ...19853890119
the duration of larval life of aedes aegypti as affected by time of hatch.when aedes aegypti eggs (1-10 wk old) were submerged in water, larvae that hatched in the 24 hr period following exposure to reduced oxygen developed significantly faster than larvae from the initial hatch. there were significant differences in the sex ratios between first- and second-hatch groups; however, adult size and fecundity did not differ significantly.19853880263
location of esterase loci in aedes aegypti.linkage relations of two loci, est-4 and est-6, have been studied in aedes aegypti. est-4 is on chromosome i, the sex chromosome, about 33 units from the sex region on the opposite side from red eye (re). this location is demonstrated for the first time. data for est-6 agree with results of other workers.19853880258
high-resolution gradient polyacrylamide electrophoresis of isozymes of the mosquito, aedes aegypti.a procedure for high resolution electrophoresis of isozymes of the mosquito aedes aegypti using nonlinear (2.5%-20%) polyacrylamide gradient gel slabs is described. crude mosquito homogenates were electrophoresed on gradient and on homogeneous (7%) polyacrylamide gels and stained for esterase (est), isocitrate dehydrogenase (idh) and malate dehydrogenase (mdh). the resulting zymograms were compared to demonstrate the high resolving power of the polyacrylamide gradient gel system.19853880252
efficacy of three insect growth regulators on the development of aedes aegypti. 19853880238
wind tunnel evaluation of commonly used adulticides against new orleans aedes aegypti. 19853880235
laboratory evaluation of controlled-release insect repellent microcapsule formulations and two polymer formulations of deet were tested on white rabbits for their repellency against the mosquito, aedes aegypti. two microcapsule formulations and one polymer formulation provided more than 80% protection for 12 hours. results demonstrated that the protection period of deet can be extended through controlled-release techniques.19853880224
a simple method of identifying organophosphate insecticide resistance in adults of the yellow fever mosquito, aedes aegypti.a simple filter paper spot test is described for identifying adult aedes aegypti resistant to malathion as a result of raised esterase levels. the method is compared with established polyacrylamide gel (pag) electrophoresis techniques for determining esterase-6 activity, and its applicability as a field test is discussed.19853880211
geographic genetic differentiation and arbovirus competency: aedes aegypti and yellow fever. 19853870635
[present viability of the eradication of aedes aegypti in the control of yellow fever in brazil]. 19853843131
[biology and behavior of aedes aegypti]. 19853843130
aedes aegypti: model for blood finding strategy and prediction of parasite manipulation.aedes aegypti mosquitoes salivate during intradermal probing of vertebrate prey before ingesting blood (griffiths and gordon 1952). nonsalivating mosquitoes locate blood more slowly; this difference was ascribed to an anti-platelet activity found in the mosquito's saliva (ribeiro et al. 1984). mosquitoes infected with plasmodium gallinaceum suffer pathology that specifically impairs saliva anti-hemostatic activity but without reducing volume of output (rossignol et al. 1984). the complexity of t ...19853839460
[new data on the transmission of filariae].this paper summarizes research of the past several years on two phases of filarial transmission: the ingestion of microfilariae by the vector and the regulation of the percentage of successful parasites by the vector. experiments involved several different models for study: injection of inert particles into the bloodstream of a rodent and their subsequent ingestion by a vector; ingestion of gametocytes of different ages by vectors of a rodent malaria; and a monkey simultaneously infected with fo ...19853836764
rainfall, abundance of aedes aegypti and dengue infection in selangor, epidemio-meteorotropic analytical study of selangor, in the southwest coast of peninsular malaysia, examines the monthly incidence of dengue for the period 1973-1982 to assess possible quantitative association with the monthly rainfall. the relationships between rainfall, abundance of a. aegypti and dengue infection during 1982 in jinjang, a dengue-prone area in selangor, were also examined. a quantitative association between rainfall and the number of dengue cases was found during the first ...19853835698
selection for susceptibility and refractoriness of aedes aegypti to oral infection with yellow fever virus.artificial selection on strains of aedes aegypti showing susceptibility and refractoriness to oral infection with yellow fever virus (yfv) suggests that there is a significant genetic component to this trait. using a population with an average susceptibility of 15%, inbreeding of isofemale lines followed by individual selection produced susceptible (29% infected) and refractory (11% infected) lines. the difference between lines was largely apparent before individual selection, which failed to in ...19853834805
oral infection of aedes aegypti with yellow fever virus: geographic variation and genetic considerations.twenty-eight populations representing a worldwide distribution of aedes aegypti were tested for their ability to become orally infected with yellow fever virus (yfv). populations had been analyzed for genetic variations at 11 isozyme loci and assigned to one of 8 genetic geographic groups of ae. aegypti. infection rates suggest that populations showing isozyme genetic relatedness also demonstrate similarity to oral infection rates with yfv. the findings support the hypothesis that genetic variat ...19853834804
the susceptibility of aedes aegypti (l) larvae to a pathogenic non sexual saprolegnia sp. 19853833712
avermectins, mk-933 and mk-936, for mosquito control.two avermectins were shown to be effective as mosquito larvicides or when fed to adult female mosquitoes in sucrose solution or in blood. larval lc50 values of compounds mk-933 and mk-936, expressed as parts per billion, were found to be 3.94 and 2.42 for culex pipiens, 5.85 and 2.90 for anopheles stephensi and 23.4 and 10.4 for aedes aegypti. when fed to adult females of an. stephensi, ae. aegypti or cx quinquefasciatus, mk-933 at 2.8mg active ingredient per litre in sucrose solution caused com ...19853832491
effect of plasmodium gallinaceum infection on the mortality and body weight of aedes aegypti (diptera: culicidae). 19873820241
hemocyte cell surface changes in aedes aegypti in response to microfilariae of dirofilaria immitis.this study involved the assessment of surface changes on hemocytes of aedes aegypti black-eyed liverpool strain in association with the melanization response against intrathoracically inoculated dirofilaria immitis microfilariae (mff). surface changes on hemocytes were identified using fluorescein-labeled wheat germ agglutinin (wga). in mosquitoes eliciting a melanization response against inoculated mff, there was a 5-fold increase in the percentages of hemocytes exhibiting wga binding compared ...19863819964
sclerotization of mosquito cuticle.the mode of sclerotization of aedes aegypti pupal and adult cuticle was examined by employing biochemical and radioactive techniques. during larval-pupal metamorphosis, tyrosine is converted to tanning precursors and is incorporated into aryl-amino adducts and beta-crosslinks. the major hydrolysis product of beta-crosslinks in pupal cases is identified to be arterenone. examination of tanning modes in five different mosquito species shows that the ratio of quinone to beta-sclerotization not only ...20133817100
effect of temperature on the vector efficiency of aedes aegypti for dengue 2 virus.the effect of temperature on the ability of aedes aegypti to transmit dengue (den) 2 virus to rhesus monkeys was assessed as a possible explanation for the seasonal variation in the incidence of dengue hemorrhagic fever in bangkok, thailand. in two laboratory experiments, a bangkok strain of ae. aegypti was allowed to feed upon viremic monkeys infected with den-2 virus. blood-engorged mosquitoes were separated into two groups and retained at constant temperatures. virus infection and transmissio ...19873812879
microfilarial perforation of the midgut of a determine whether the midgut envelope of mosquitoes is disrupted by the passage of microfilariae, ultrastructural changes induced by microfilariae of brugia malayi were observed in midguts of aedes aegypti mosquitoes. basal and apical plasma membranes were destroyed, disrupting the full depth of the midgut wall. ingested ferritin lay against the gut wall, suggesting absence of the peritrophic membrane during penetration. exsheathment of microfilariae appears to be enhanced by movement against ...19863806321
the effects of plagiorchis noblei metacercariae on the development and survival of aedes aegypti larvae in the laboratory.plagiorchis noblei infections impair the survival and development of fourth instar aedes aegypti larvae. mortality during the larval and pupal stages reached 92%, and 60% of the emerging adults were malformed. the metacercariae interfere with pupation and the emergence of adults. larvae and pupae that fail to transform to the next developmental stage within the normal time characteristically persist for extended periods, but invariably die without transforming. whereas 82% of the control larvae ...19863806320
[new and unusual locations of aedes (stegomyia) aegypti, linné 1762 (diptera, culicidae) in madagascar].the author situates and comments three new aedes aegypti's locations in madagascar; one of which is in the international tananarive's airport's control area.19863802312
the 1982 emergency ultralow volume spray campaign against aedes aegypti adults in paramaribo, suriname. 19863801746
[use of surviving infectious larvae of dipetalonema dessetae in study and research on filaricidal substances].dipetalonema dessetae in proechimys oris, the natural final host is a rodent filariasis model used as an in vivo antifilarial screening test. the laboratory vector is aedes aegypti. infective larvae l3 isolated from the intermediate host develop and remain healthy for up to 30 days in a biphasic culture medium composed of a cell feeder layer (l 929) and rpmi 1640 supplemented with foetal calf serum. this culture technique has enabled us to screen antifilarial compounds on a new in vitro test. th ...20063795974
surface changes on brugia pahangi microfilariae and their association with immune evasion in aedes aegypti. 19873794383
what can be learnt about selection from gene frequency distribution?polymorphism has been studied at the esterase 6 locus in the yellow fever mosquito aedes aegypti (l.) in laboratory stocks. at least 12 alleles are present, with up to four coexisting in a stock. the allele frequency distribution is quite sharply peaked at a mode of about 0.25. the experimental data are compared with the results of simulation based on two models, one in which the initial global distribution is taken to be the stationary distribution obtained from the neutral model assuming m = 4 ...03792826
passage of yellow fever virus: its effect on infection and transmission rates in aedes aegypti.the effect of successive lytic passage of yellow fever virus on mosquito infection and transmission rates in the vector, aedes aegypti, was determined. three strains of yellow fever virus from trinidad and peru were passaged five times in suckling mouse brains and seven times in bhk-21 cells. mosquitoes were fed meals containing passaged and unpassaged viruses and infection and transmission rates were compared. rates were similar for all but one of the three virus strains grown in both substrate ...19863789277
dispersal and other population parameters of aedes aegypti in an african village and their possible significance in epidemiology of vector-borne diseases.dispersal of aedes aegypti aegypti adults within shauri moyo, an african village in the rabai area north of mombasa, kenya, was studied using the mark-release-recapture method. a total of 920 mosquitoes were captured and uniquely marked, of which 828 (90%) were released and 332 (40%) recaptured. a great majority of mosquitoes were recaptured once, but some individuals were recaptured up to 10 times. most females visited 1 or 2 houses (40.8%, 44.9%, respectively), but there were females that visi ...19863789275
the effect of repeated blood meals on the larval development of dirofilaria corynodes in the fat body of aedes aegypti.the objective of the study was to determine whether blood meals taken by a vector subsequent to the infective one have any influence on the course of development of a filarial parasite in its tissue. the filaria dirofilaria corynodes (von linstow, 1899) was selected for study and the black-eye strain of aedes aegypti served as the experimental vector. the microfilaria of d. corynodes develops to the infective stage in the fat bodies of the vector. following an infective blood meal, mosquitoes we ...19863787121
ultrastructure of malpighian tubules of aedes aegypti infected with dirofilaria immitis. 19863782853
analysis of mosquito larvicidal potential exhibited by vegetative cells of bacillus thuringiensis subsp. israelensis.vegetative bacillus thuringiensis subsp. israelensis cells (6 x 10(5)/ml) achieved 100% mortality of aedes aegypti larvae within 24 h. this larvicidal potential was localized within the cells; the cell-free supernatants did not kill mosquito larvae. however, they did contain a heat-labile hemolysin which was immunologically distinct from the general cytolytic (hemolytic) factor released during solubilization of b. thuringiensis subsp. israelensis crystals. the larvicidal potential of the vegetat ...19863777922
comparative studies on the melanization response of male and female mosquitoes against microfilariae.the melanization response of adult male and female aedes trivittatus and the black-eyed liverpool strain of aedes aegypti against intrathoracically inoculated dirofilaria immitis microfilariae (mff) was assessed at 1, 3, and 5 days postinoculation (pi). the melanization reaction of males is significantly less effective than the response elicited by female mosquitoes. no mff in male a. aegypti and only 17% of mff recovered from a. trivittatus were fully melanized by day 5 pi compared with 80% and ...19863770266
application of environmental management principles in the program for eradication of aedes (stegomyia) aegypti (linneus, 1762) in the republic of cuba, 1984. 20103768599
etiologic and serologic investigations of the 1980 epidemic of dengue fever on hainan island, china.virologic and seroepidemiologic studies were carried out during an epidemic of dengue fever on hainan island in 1980. dengue 3 virus was isolated from 46 of 77 acute phase sera and from 1 of 10 pools of adult aedes aegypti. dengue 1 virus virus was isolated from a single acute phase serum. seroepidemiologic investigations showed that 74% of healthy individuals in the epidemic area had antibody to dengue virus compared to 54% in an area where epidemic dengue had occurred in 1978, and less than or ...19863766851
the effects of larval density, temperature and ph on the culture growth and infectivity of saprolegnian sp. zoospores to aedes aegypti larvae at various instars in the laboratory. 19863759180
the ability of aedes aegypti mosquitoes to survive and transmit infective larvae of brugia pahangi over successive blood meals.the mortality of aedes aegypti mosquitoes increased; immediately following a blood meal containing microfilariae of brugia pahangi, when infective larvae began to migrate out of the flight muscles and when infective larvae were lost from the mosquitoes during a blood meal. when infective mosquitoes took a second blood meal 86.2% of the infective larvae escaped from their bodies. however, only 50.3% escaped when mosquitoes fed through a thin layer of cotton. infective larvae in the abdomen of the ...19863745870
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