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differential distribution of peridomestic aedes mosquitoes on grand bahama island.aedes aegypti, on grand bahama island, is restricted to certain western towns, whereas a. bahamensis is more generally distributed. during 14 years of observation, the range of a. aegypti has extended 8 km and now includes the major tourist centre. relocation of discarded automobile tires is an important mechanism for such spread. we suggest that the presence of a. bahamensis restrains colonization by a. aegypti, and thereby helps to protect human populations from a. aegypti-borne disease.1979555063
the influence of phenylthiourea on encapsulation, melanization, and survival in larvae of the mosquito aedes aegypti parasitized by the nematode neoaplectana carpocapsae. 1977556751
postemergence growth of the ovarian follicles of aedes aegypti. 1977558249
comparative activity and properties of lactate dehydrogenase, xanthine dehydrogenase, and dihydrofolate reductase in normal and brugia pagangi-infected aedes aegypti.the amount of xanthine dehydrogenase (xdh), dihydrofolate reductase (dhfr), and lactate dehydrogenase (ldh) in crude extracts of 4- to 5-day-old adult aedes aegypti was determined, and the properties of these enzymes were partially characterized. it was then found that the amount and other selected characteristics of xdh and ldh in extracts of female ae. aegypti processed 5 to 7 days and 12 to 14 days after they had fed upon either normal or brugia pahangi-infected jirds were indistinguishable f ...1977559068
[mechanism assuring the regulation of stomach wall passage in the vector aedes aegypti by dipetalonema dessetae microfilaria]. 2003561565
studies on naturally occurring filarial infections in dogs in lebanon. i. dipetalonema reconditum.a survey for filarial parasites was carried out on dogs in lebanon. the peripheral blood was examined for microfilariae and the skins and carcasses for adult worms. three methods were used for blood examination: (a) thick blood films stained with giemsa; (b) a modified knott's technique (methylene blue stained); (c) sodium citrate technique. two species of filarial worm were found, dipetalonema reconditum and another species of dipetalonema which will be described in a later paper. the morpholog ...1978566087
a comparative study of ovitrap and single larva survey methods for the surveillance of aedes aegypti in pune city. 1979570958
[dipetalonema dessetae--aedes aegypti: study of the infected adipose tissue (author's transl)].histological and ultrastructural study of the adipose tissue of aedes aegypti has shown that infection with the filaria dipetalonema dessetae locally induces a highly active synthesis of proteins (formation of ribosomes, endoplasmic reticulum and golgi complexes, multiplication of mitochondria). this phenomenon appears similar to the effect of beta-ecdysone after the up-take of blood. mosquitoes let to starve during the development of the filaria show a quick disappearance of storage substances ...2006573582
[the filaria breinlia booliati in the adedes togoi adipose tissue; comparison with the couple dipetalonema dessetae-a. aegypti (author's transl)].in the couple filaria-vector breinlia (breinlia) booliati-aedes (finlaya) togoi, the changs observed in the parasited adipose tissue display large similarities with those recently observed in dipetalonemia (molinema) dessetae-aedes (stegomyia) aegypti: same syncitium organisation of parasited adipocytes, and local stimulation of protein synthesis. however, there is an essential difference between the two coules studied: the parasited adipous syncitium is not any more induced by a blood uptake in ...2007575875
dynamics of vitellogenin uptake in aedes aegypti as demonstrated by trypan blue. 1977591733
efficiency of a single insemination in preventing a second in the rock strain of the mosquito, aedes aegypti. 1977591734
the influence of the gene sb in culex pipiens on the development of sub-periodic brugia malayi and wuchereria bancrofti.the gene sb (filarial susceptibility, brugia pahangi) in culex pipiens controls the development also of sub-periodic b. malayi, but has no influence on the development of periodic wuchereria bancrofti (ceylon strain). c.p. fatigans (kuala lumpur), c.p. molestus (london) and aedes aegypti (re fm strain) were all susceptible to the ceylon strain of w. bancrofti, with susceptibility rate of 90.3%, 92.9% and 52.6% respectively. however, a low proportion of the larvae in a. aegypti developed to matur ...1977596959
peripheral cells in the salivary glands of female aedes aegypti and a. togoi mosquitoes. 1977604386
[effect of densonucleosis virus on the imago of aedes aegypti l. mosquitoes]. 2009604764
a device for separation of pupae from larvae of aedes aegypti (diptera: culicidae). 1977606825
requirement for sugar in a chemically defined diet for larval aedes aegypti (diptera: culicidae). 1977609068
transporting the marker gene re (red eye) into a laboratory cage population of aedes aegypti (diptera: culicidae), using meiotic drive at the md locus. 1977609075
effects on the productivity of irradiated male populations of aedes aegypti (diptera: culicidae). 1977609083
hematophagous insects as vectors for frog trypanosomes.experimental infections of three hematophagous arthropods (rhodnius prolixus, aedes aegypti, and culex pipiens) with a trypanosome of the trypanosoma rotatorium complex found in the frogs hyla crepitans and leptodactylus insularum revealed that a. aegypti is a good host for the flagellate; the course of development in the intestinal tract of the mosquito is described from 15 minutes to 168 hours. c. pipiens showed only low intestinal infections and r. prolixus did not permit development of the p ...1977615322
a new paddle for the black jar ovitrap for surveillance of aedes aegypti. 1977615850
the development of procedures and techniques for mass rearing of aedes aegypti. 1977615859
fate of a bacteriophage in aedes aegypti, anopheles quadrimaculatus (diptera: culicidae), and periplaneta americana (orthoptera: blattidae). 1978624847
an epidemic of yellow fever in central brazil. 1972-1973. i. epidemiological studies.an epidemic of jungle yellow fever occurred in goiás state, brazil, between december 1972 and march 1973. laboratory confirmed cases were observed in 36 counties located in the central and southern parts of the state. seventy-one cases were proved, of which 44 were fatal. the diagnosis was made on the basis of pathology, serology, and virus isolation. besides yellow fever, malaria and viral hepatitis were present, and in two fatal cases there was malarial pigment in the liver in addition to the ...1978626268
ultrastructural changes in the fat body of adult female aedes aegypti in relationship to vitellogenin synthesis.the ultrastructure of the fat body of aedes aegypti was followed from emergence through a blood meal. changes in the volume of protein granules and lipid droplets were also examined. the relationship of these events to the known endocrinology of vitellogenin synthesis in mosquitoes is discussed.1978627029
adaptation of an aedes aegypti mosquito cell line to growth at 15 degrees c and its response to infection by sindbis virus.aedes aegypti mosquito cells, usually cultured at 28 to 30 degrees c, were adapted to grow at 15 degrees c. they were designated a. aegypti (c) cells, and had an estimated doubling time of 10 days. sindbis virus (sv) replicated in these cells to peak titres of over 1.0 x 10(9) p.f.u./ml 8 to 10 days after inoculation. these, or about 10-fold lower titres, continued to be produced over a 130 day test period without causing visible cell damage. continuous virus proliferation and the yield of unifo ...1978627872
dirofilaria immitis: experimental infections in the ferret (mustela putorius furo).the ferret, mustela putorius furo, was found to be susceptible to dirofilaria immitis infection when exposed to low (14) or high (280-420) numbers of infective larvae harvested from aedes aegypti. eight ferrets (half of them cortisonized) were inoculated subcutaneously with 14 larvae each. all of them were subsequently found to harbor d. immitis in the heart, and all but one of them had worms of both sexes. six of these ferrets were examined for microfilaremia at 31 to 35 weeks after inoculation ...1978627949
diurnal periodicity of attraction to human bait of aedes aegypti (diptera: culicidae) in jakarta, indonesia. 1978633287
orungo virus: transmission studies with aedes albopictus and aedes aegypti (diptera: culicidae). 1978633290
evidence that sulfisoxazole, an antibacterial sulfonamide, can adversely affect the development of brugia pahangi in aedes aegypti mosquitoes.the average number of infective larvae recovered from brugia pahangi-infected aedes aegypti was approximately one-half that recovered from the controls after the former group of infected mosquitoes had ingested a 1.0% solution of sulfisoxazole diolamine (sxz) in 10% sucrose-water for 4 consecutive days, beginning 4 days after infection. most of the filarial larvae from the sxz-treated mosquitoes were small and sluggish compared with those from the controls. there was no increased mortality of mo ...1978641660
quantitative serological differentiation of strains of aedes aegypti. 1978660394
the ultrastructural basis of abnormal development of brugia pahangi in refractory aedes aegypti.cuticular abnormalities in larval brugia pahangi at c. 12 hours post blood meal are the first signs of abnormal worm development in refractory aedes aegypti. normally developing b. pahangi undertakes large scale cuticular reorganization during the first larval stage, screting new cuticle to nearly six times the original volume. the inability of the first stage larva to carry out this cuticular reorganization in refractory a. aegypti is the basis of developmental abnormality. it is concluded that ...1978666399
aedes aegypti (l.) in maharashtra state--distribution and larval habitats. 1978680896
methylenetetrahydrofolate dehydrogenase and reductase activity in normal and brugia pahangi-infected aedes aegypti. 1978682069
blood meal size as a factor affecting continued host-seeking by aedes aegypti (l.).the effect of ingested blood on the host-seeking response of two strains of aedes aegypti was examined. using an olfactometer, females fed partial blood meals were scored for host-seeking behavior within 1 h, and their blood meal sizes were measured chemically immediately afterwards. the suppression of host-seeking within 1 h after a blood meal appears to be caused by abdominal distention from ingested blood. mosquitoes of either strain were attracted to a host when the blood meal size was less ...1978686250
genetic structure of the east african domestic populations of aedes aegypti. 1978692658
cell cycle and dna synthesis in the mosquito aedes aegypti.chronology of the cell cycle has been determined for brain cells in aedes aegypti (l.) larvae by autoradiography. the time of the cell cycle is approximately 10 h and 30 min. areas of late dna synthesis in metaphase chromosomes were localized mainly on the female determining (= m) chromosome of the sex pair. correlations between late replication patterns and c-banding are discussed.1978698881
effect of majorana hortensis oil on metamorphosis of aedes aegypti. 1978700802
interactions between larvae of aedes aegypti and aedes albopictus in mixed experimental populations.the interaction between larvae of ae. aegypti and ae. albopictus in mixed experimental populations under adequate and inadequate food supply were studied in the laboratory. the results revealed that ae. aegypti had the beneficial effects on the development and survival of ae. albopictus when food was adequate but adverse effects on ae. albopictus is exterminated when ae. aegypti is present. urbanization and ecology of mosquitoes could be factors in the decreasing number of ae. albopictus populat ...1978705422
development of the calyx and lateral oviduct during oogenesis in aedes aegypti.the lateral oviduct and calyx of nulliparous aedes aegypti on a sucrose diet are both flattened sacs, lacking a well defined lumen. both are formed of an inner epithelial and an outer muscular layer, each one cell thick. the lateral oviduct is surrounded by a circular muscle sheath which is continuous with the ovarian sheath. each ovariolar sheath is continuous with the outer layer of the calyx. the structure of both the lateral oviduct and the calyx is greatly modified after the initial blood m ...1978719709
studies on diel periodicity in the landing of aedes aegypti on man in bangalore city. 1978721185
a year round study of aedes aegypti in barsi town, maharashtra state. 1978721186
serine transhydroxymethylase activity in normal and brugia pahangi-infected aedes aegypti. 1978722452
aedes aegypti in puerto rico: environmental determinants of larval abundance and relation to dengue virus transmission.in order to understand adquately the dynamics of vector-borne disease, one must understand how and why vector populations change over time. we describe a long-term, cooperative study of seasonal fluctuation in populations of the aedes aegypti mosquito in puerto rico. during each month of the first 3 years of the project, a. aegypti was found breeding in all five communities studied. mosquito density was positively correlated with rainfall, the relationship being more marked in the dry, south-coa ...1978727328
a biomonitoring procedure utilizing negative phototaxis of first instar aedes aegypti larvae.negative phototaxis of newly hatched aedes aegypti l. larvae was inhibited by exposure to three heavy metals and five organic insecticides. this response was quantified in an inexpensive multiunit apparatus consisting of four glass troughs perpendicular to a uniform light source. the criterion of toxic effect, established with cupric sulfate as a standard, was: inability of larvae to migrate 30 cm in 60 sec after 8 hr of pre-exposure, designated as 8-hr ec50. the photomigration procedure was mor ...1978727829
[effect of the densonucleosis virus on the aedes aegypti l. mosquito during the process of ontogeny]. 1978728502
effects of acridine orange on the productivity of male aedes aegypti (diptera: culicidae). 1978731666
studies with brugia pahangi. 20. an investigation of 23 anthelmintics using different screening techniques.23 anthelmintics were tested against brugia pahangi microfilariae and infective larvae in vitro and in aedes aegypti infected with b. pahagi and jirds (meriones unguiculatus) infected with a b. pahangi/patei hybrid. there was little correlation between the results obtained in vitro and in infected insects and the results obtained in these tests gave no indication of the activity in jirds. three of the compounds were macrofilaricidal in jirds and these were tested in cats infected with b. pahangi ...1978734717
identification and linkage relationships of three hexokinase genes in aedes aegypti.four regions of hexokinase activity are detected by starch gel electrophoresis of adult aedes aegypti. three of the regions, hk-2, hk-3, and hk-4, are produced by three tightly linked loci, located on the third chromosome 7.25 map units from the locus fuzzy. the three loci show developmental differences as well as differences in substrate specificity.1978736884
the cell cycle of an established cell line of the mosquito aedes aegypti.the duration of the cell cycle and its four phases was determined for a cell line of the mosquito, aedes aegypti (l.), using high-resolution autoradiography. the total cell cycle time is 12.5 h, with g1 comprising 1.66 h, s--4.5 h, m--3 h, and g2 3.33 h. these results are compared with those of other mosquito species.1978743595
[diagnostic assays of the resistance of aedes aegypti to organophosphate insecticides]. 1978747430
toxicological studies of insecticides on cullex quinquefasciatus say and aedes aegypti (l.).toxicity tests carried out on the larvae of a. aegypti and c. quinquefasciatus showed the former to be more tolerant of all insecticides tested, the order of toxicity being temephos greater than ddt greater than ddvp greater than malathion greater than lindane greater than carbaryl; also the second instar larvae of a. aegypti were more susceptible than fourth instar larvae. enzyme kinetic studies on the total non-specific esterases and cares of adults and larvae of both species showed the km val ...1978749224
[various properties of continuous culture of mosquito cells].the possibility of cultivating a continuous line of aedes aegypti mosquito cells in mitsuhashi and maramorosh medium and medium c-45 was studied. the results of morphological, karyological, and electron microscopic studies of these cells as well as the results of the study of isoenzymes of a. aegypti mosquito cells are presented. replication of sindbis, okhotsky, and baku viruses in these cells was demonstrated.1978749343
comparison of single larva and conventional pool methods for the study of aedes aegypti in tyre dumps. 1978750442
studies on recapture rates of aedes aegypti in relation to age. 1978750443
studies on the susceptibility of a large urban population of aedes aegypti to infection with dengue viruses.a large urban population of aedes aegypti in jakarta, indonesia was studied for one year to determine whether it was homogeneous in terms of susceptibility to dengue viruses and whether seasonal changes in susceptibility to dengue viruses occurred. mosquitoes from several districts in jakarta showed a low but homogeneous susceptibility to dengue 2 virus from november 1975 to april 1976. in june 1976, increased susceptibility to dengue 2 virus was observed among some of the subpopulations of ae. ...1978751215
a preliminary map of the salivary gland chromosomes of aedes (stegomyia) aegypti (culicadae, diptera).a preliminary map of the polytene chromosomes in aedes aegypti has been prepared. the preparations were made from the salivary glands of the late 4th instar larvae reared at low temperature. the entire chromosome complement was divided into 45 zones. the chromosomes showed a meshwork of the contents wherein they have a tendency to adhere to each other so as to form a single chromatic mass. the technical difficulties encountered in obtaining suitable preparations have partially been overcome. the ...1978753598
a field trial of suppression of aedes aegypti population by releasing sterile males into a domestic population.after release of an average of 1260 sterile male each day for a period of sixty two days, the average fertility of aedas aegypti population remained above 50% in ererwani village. it is concluded that the irradiated sterile males may not be suitable as a control measure, despite the fact that irradiation was carried out in nitrogen atmosphere.1977754134
[the filaria dipetalonema dessetae: phenomena of regulation and parasite yield in the aedes vector].numerical observations were made on the various steps of the cycle of dipetalonema dessetae in aedes aegypti: -- ingestion of microfilariae: the numbers of the ingested microfilariae correspond to a negative binomial distribution, but the over-dispersion is less important than in the bancroft's filaria as observed by pichon; in this last case the microfilariae are thicker and thus are more slowed in the capillari; -- crossing of the stomach wall: the "limitation" is caused by a precociously esta ...2016754621
an agent in the aedes aegypti cell line (peleg) which causes fusion of aedes albopictus cells. 1975806166
isolation of chikungunya virus contaminating an aedes albopictus cell line.an aedes albopictus cell line was found contaminated with structures morphologically compatible with an alphavirus. rapid isolation of a cytopathic virus was effected by combining sonication, concentration with aquacide ii-r, rate zonal sedimentation and subsequent plating of fractions on vero cells under agar overlay. the virus caused neithedeath nor disease on inoculation into infant and adult mice. it produced a c.p.e. in vero and bhk 21 cells, and multiplied in singh's aedes aegypti cells. t ...1975806659
adaptation studies with ross river virus: retention of field level virulence.two field strains of ross river virus (rrv) which differed in virulence for laboratory mice were maintained without detectable change in virulence when passaged alternately in aedes aegypti mosquitoes and newborn mice. no biological mechanism or selection pressure was identified to explain this suppression of the usual change to higher virulence observed when rrv is passed serially in infant mice. the maintenance of initial virulence by alternating passages appears to be related to the fact that ...1975808589
effects of thiotepa on the productivity of male aedes aegypti.the effects of various concentrations of thiotepa, a chemomutagen, on the genetic fitness of aedes aegypti males was studied. oral treatments of 0.025 percent, 0.050 percent and 0.075 percent thiotepa induced sexual sterility in the male mosquitoes. analyses of total f2 productivity indicate that the mean number of progeny was significantly decreased with exposure to 0.001 percent of the chemomutagen. at 0.001 percent thiotepa only a mean of 198.04 f2 progeny per culture were produced; by compar ...2013809498
multiplication of venezuelan equine encephalitis (mucambo) virus in cultured mosquito cells.venezuelan equine encephalitis (mucambo) virus was able to multiply at 28degree c in cultured mosquito cells (aedes aegypti and aedes albopictus) without inducing any apparent cytopathology. the kinetics of virus multiplication was similar in mosquito and mammalian (vero) cells. twelve to twenty four hours post-infection, a maximum of 10-50 per cent of the cells were engaged in virus production; however, almost immediately this proportion fell abruptly tending to stabilize in the order of 0.01 t ...1975813617
[the mechanism controlling the crossing of the vector's stomach wall by microfilariae (dipetalonema dessetae-aedes aegypti)].in some of the human filariasis, the number of microfiliariae which succeed in crossing the vector's stomach wall is smaller when the number of ingested microfilariae is larger (limitation). in the couple dipetalonema dessetae-aedes aegypti, this phenomenon appears to be due to a specific lysis of the stomach cells invaded by the microfilariae. this reaction is started when the microfilariae are very numberous. there is "information" transmitted to the whole of the vector's stomach.1975813899
neoaplectana carpocapsae:encapsulation in aedes aegypti and changes in host hemocytes and hemolymph proteins. 1976816666
marylanders defeat philadelphia: yellow fever updated.those strategic points which influence this amateur historian to declare a victory for baltimore and maryland over philadelphia are: i. based upon clinical and epidemiological data, two marylanders, potter and davidge, were among the first to contest rush and his contagion theory; they told him so and published their views. to prove this point, potter went to the extreme of inoculating himself with presumedly infected material. stubbins ffirth, a young university of pennsylvania medical student, ...1976822563
[host range of drosophila melanogaster c virus among diptera and lepidoptera (author's transl)].the host range of the c picornavirus of drosophila melanogaster was studied, using numerous strains of drosophila together with four other genera of diptera and two species of lepidoptera. c virus was injected into the different hosts and serially passaged in them. the extracts from each passage were biologically assayed on virus free d. melanogaster. four different situations were found. 1) a high level of multiplication leading, in 45 strains of drosophilidae, to the early death of the hosts. ...1976823856
[transovarian transmission of a flavivirus, the koutango virus, in aedes aegypti l].the koutango virus dak an d 5443 isolated from rodents of the genus tatera belongs to the genus flavivirus of the faily togaviridae. this virus is very similar to the yellowfever, virus. it is experimentally transmitted from young mouse to young mouse by aedes aegypti. the following observations show on one hand that this virus is found in the eggs of infected a. aegypti and on the other that the females from these eggs transmit the virus to the young mouse by biting them.1976827342
ultrastructural changes in midgut cells of female aedes aegypti l. (insecta, diptera) after starvation or sugar diet.the ultrastructure of the epithelial cells in the posterior part of the midgut in female aedes aegypti was partly changed after starvation periods of 5 or 8 days. most obvious is a drastic reduction of the amount of rough endoplasmic reticulum (rer), which is responsible for the synthesis of enzymes for blood digestion. a similar influence on rer membranes is to be observed in mosquitoes fed on sucrose solution only, without additional blood meals.1977837408
an application of mathematical modelling to the study of reproductive adaptations in the yellow fever mosquito, aedes aegypti. 1977845888
development and variation in flanges on the proventriculus of larvae of aedes aegypti (diptera: culicidae). 1977845893
the histopathology of thermally induced sterility in aedes aegypti (diptera: culicidae). 1977845904
fine structure and role in behavior of sensilla on the terminalia of aedes aegypti (l.) (diptera: culicidae).the terminalia of male and female aedes aegypti (l.) bear numerous hairs of various shapes and lengths, all of which are mechanoreceptors. each hair is innervated by one bipolar neuron which contains ciliary rootlets, two basal bodies, and a region assuming the structure of a non-motile cilium. at the distal tip of the dendrite is a tubular body, a characteristic of cuticular mechanoreceptors. covering the outer dendritic segment is a cuticular sheath which ends proximally in a net-like felt-wor ...1977845972
primary lymph node responses to mosquito bites.post-auricular lymph node responses and changes in fresh weight of thymus and spleen of hamsters and mice at 4 and 8 days after primary exposure of both ears to 20 bites by the mosquito aedes aegypti were studied quantitatively. in both hosts lymph node changes characteristic of the development of cell-mediated immune responses and those which are believed to lead to antibody production occurred, with the emphasis on the latter phenomena. no reactions of thymus and spleen were observed. the resp ...1977848080
waltonella flexicauda: development controlled by a genetic factor in aedes aegypti. 1977849762
resistance to meiotic drive at the md locus in an indian wild population of aedes aegypti. 1977863247
studies on aedes aegypti in bangalore city. 1977863489
effect of polyene macrolide antibiotics on invertebrate tissue culture cells.the effect of amphotericin b (ab) and amphotericin b methyl ester (ame) on viability and dna synthesis in three insect cell lines, trichoplusia ni (tn) carpocapsa pomonella 169 (cp) and aedes aegypti (aa), has been evaluated. in all cases ame was less toxic than ab and inhibited dna synthesis to a lesser degree than ab. however, the three cell lines differed in their response to the two polyene macrolide antibiotic preparations. tn and aa cell responded in a similar manner when exposed to either ...1977863791
sterility introduced by release of genetically altered males to a domestic population of aedes aegypti at the kenya coast.the release of males heterozygous for one or two sex-linked translocations was effective in introducing a high level of sterility into a domestic population of aedes aegypti at a rabai village. the effect of the releases continued for several weeks after the release period.1977869107
autogeny in diverse populations of aedes aegypti from east africa.autogeny in aedes aegypti was found in many diverse populations throughout the range of east africa. degree of autogeny is proposed to be measured either by a relative method using an autogeny index (aix), or by direct count of eggs in dissected ovaries and expressed in percentage. degree of autogeny varied from population to population but it was always higher in the dark feral ae. aegypti formosus than in the domestic ae. aegypti aegypti form. the highest degree of autogeny occurred in the dar ...1977871038
induction of venezuelan equine encephalitis (mucambo) virus by iododeoxyuridine in chronically infected 'cured' cultured mosquito cells.infection of cultured aedes aegypti mosquito cells with venezuelan equine encephalitis virus (mucambo subtype) results in the establishment of a chronic non-cytopathic infection. infected cells could be 'cured' when they were grown in the presence of immune serum for 3-4 passages. 'cured' cells could then be subcultured repeatedly, in the absence of immune serum, without showing any indication of infectious virus production. when 'cured' cells were exposed to 50 microgram/ml of 5-iodo-2-deoxyuri ...1977873741
[preservation of the densonucleosis virus of the mosquito aedes aegypti l. in glycerin]. 1977875901
an autocidal ovitrap for the control and possible eradication of aedes aegypti.a revolutionary, autocidal ovitrap has been developed as a promising weapon for the control and possible eradication of ae, aegypti, the principal vector of dengue haemorrhagic fever (dhf), in urban high dhf endemic areas. a study carried out with this trap in a highly endemic area for dhf in singapore city, namely the rochor area, has shown this trap to be superior to all other domestic habitats in attractiveness to ovipositing ae. aegypti females.1977887996
on the development of onchocerca volvulus in mosquitoes.in an attmept to find an experimental vector for onchocerca volvulus which can be easily be bred under laboratory conditions, the susceptibility of anopheles gambiae and aedes aegypti to infection with o. volvulus was studied. the mosquitoes were fed on a membrane feeding apparatus containing microfilariae of o. volvulus. whereas a. gambiae was refractory to infection. 14.9% of a. aegypti females became infected with developing stages, 11,2% showed young and mature third-stage larvae as well as ...1977888189
type 1 dengue with hemorrhagic disease in fiji: epidemiologic findings.an explosive epidemic of dengue occurred in fiji between january and july 1975. all laboratory evidence indicated that type 1 dengue was the only prevalent dengue virus. this type had probably not been in fiji for 30 years and over 70% of the population was susceptible. aedes aegypti appeared to be the major vector in urban areas, but circumstantial evidence indicated that aedes rotumae was a vector in at least one remote area. all forms of the clinical spectrum of dengue were seen and reported ...1977889018
cytoplasmic bridges within the follicular epithelium of the ovarioles of two diptera, aedes aegypti and stomoxys calcitrans.the cells of the follicular epithelium of the ovarioles of the mosquito, aedes aegypti (l.), and of the stable fly, stomoxys calcitrans (l.), have been found to be interconnected by cytoplasmic bridges. cytoplasmic bridges have been reported between sibling gamete cells of both male and female insects, but these bridges have not been previously reported to exist between somatic cells of insects.1977894721
studies on the attraction of aedes aegypti (diptera: culicidae) to man. 1977903926
a method of evaluating ovipositional attractants of aedes aegypti (diptera: culicidae), with preliminary results. 1977903928
population characteristics of domestic aedes aegypti (diptera: culicidae) in villages on the kenya coast i. adult survivorship and population size. 1977903935
population characteristics of domestic aedes aegypti (diptera: culicidae) in villages on the kenya coast. ii. dispersal within and between villages. 1977903936
ultrastructural changes in intersegmental cuticle during rotation of the terminal abdominal segments in a mosquito.the terminal abdominal segments of male aedes aegypti rotate 180 degrees within 24 hr after adult emergence, rotation occurring in the intersegmental membrane between abdominal segments vii and viii. the ultrastructure of this rotating membrane is compared with non-rotating intersegmental membranes at different developmental stages. the deposition of cuticle in both the rotating and non-rotating intersegments appears ultrastructurally similar, and follows the sequential pattern described for the ...1977906015
aedes aegypti strain fitness for yellow fever virus transmission.three geographical strains of aedes aegypti from thailand (amphur), east africa (kampala), and the west indies (santo domingo) were compared for susceptibility to infection with low-passage yellow fever virus (french viscerotropic) as well as for ability to transmit virus by bite at varying extrinsic incubation periods. santo domingo strain appeared the most competent and kampala the least when mosquitoes were exposed to a low level virus-infecting blood meal; at higher virus levels, a similar t ...1977907058
the control of the diuresis following a blood meal in females of the yellow fever mosquito aedes aegypti (l).control of post-feeding diuresis in females of the mosquito aëdes aegypti has been studied by means of a weighing technique and simple surgical procedures. the primary controlling factor is (as in the larva) a nervous feedback mechanism and not an increased production of diuretic hormone. as the mosquito ingests blood, sensory information from the distending abdomen reaches the mid gut via the nerve cord, brain and stomatogastric system. this information probably inhibits retroperistaltic moveme ...1977908912
the fate of ingested brugia pahangi microfilariae in susceptible and refractory strains of culex pipiens and aedes aegypti.the uptake and migration of microfilariae of brugia pahangi in susceptible and refractory culex pipiens and aedes aegypti were compared after membrane-feeding the mosquitoes on infected blood and anti-coagulant. there was no difference between the strains within each species in the pattern of migration, but in c pipiens only 24% of the microfilariae reached the thorax whereas in a. aegypti 73-6% were successful. in both susceptible strains the filariae in the thorax developed normally to maturit ...1977921369
a reduction in hospitalized cases of dengue haemorrhagic fever in menado (sulawesi), indonesia after aerial spraying with ulv malathion to control aedes aegypti. 1977925556
a deoxyribonucleic acid-replication intermediate in the growing mosquito.in previous experiments on growth and aging in the yellow-fever mosquito, aedes aegypti, a low mol. wt. (500000) dna species was found in the supernatant fraction after ultracentrifugation of homogenates of rapidly-growing larvae. this dna species, "sdna", constituted 30-40% of total dna in 2-4-day-old larvae, but was less than 5% in older larvae, pupae and adults. we have now isolated and characterized sdna and initiated experiments to determine its metabolic role. isolated sdna has the same ph ...0938459
the biosynthesis of deoxyribonucleic acid during the life-span of the mosquito.previous results from this laboratory [kao et al, (1976) biochem. j. 154, 471-480] demonstrated that a low-molecular-weight dna species, "sdna", present in high concentrations during rapid larval growth of the yellow-fever mosquito, aedes aegypti, may be an intermediate in dna replication. we have now determined the life-span profiles of synthetic rates and the steady-state contents of sdna and total dna by radiometric and biochemical procedures and by using mosquitoes grown and maintained under ...0938460
inhibition of blood digestion by alpha-amanitin and actinomycin d and its effect on ovarian development in aedes aegypti. 1976944218
a method for estimating blood meal volume in aedes aegypti using a radioisotope. 1976947989
field trials with a translocation homozygote in aedes aegypti for population replacement. 1976956496
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