failure to detect natural transovarial transmission of dengue viruses by aedes aegypti and aedes albopictus (diptera: culicidae). 19854009622
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
effect of dirofilaria immitis on blood meal size and fecundity in aedes aegypti (diptera: culicidae). 19854045936
[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
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
chikungunya virus in salivary glands of aedes aegypti (l.): an electron microscope study. 19704097196
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
vector capability of aedes aegypti mosquitoes for california encephalitis and dengue viruses at various temperatures. 19744132612
aedes aegypti surveillance and control in the south pacific. 19744143238
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
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
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
inheritance of susceptibility to dirofilaria immitis infection in aedes aegypti. 19744152306
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
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
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
the pattern of flight muscle damage in relation to the distribution of developing filarial larvae in aedes aegypti and mansonia uniformis. 19744155607
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
[on histochemistry and histology of the midintestine of the aedes aegypti and anopheles stephensi in reference to the blood digestion]. 19684176382
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
[yellow fever and eradication of aedes aegypti]. 19694238707
effect of apholate and metepa on aedes aegypti infected with venezuelan equine encephalomyelitis virus. 19674283632
multiplication in and transmission by aedes aegypti of vesicular stomatitis virus. 19684302140
behaviour of infectious rna from four different viruses in continuously subcultured aedes aegypti mosquito embryo cells. 19694302398
[multiplication and transmission of the vesicular stomatitis virus by aedes aegypti (l.)]. 19684330972
can culex pipiens fatigans or aedes aegypti spread smallpox? a preliminary report. 19714348264
[morphogenesis of sindbis virus in intestinal and salivary gland cells of the mosquito aedes aegypti]. 19744366341
insecticide susceptibility and resistance in populations of anopheles gambiae, culex fatigans and aedes aegypti in southern nigeria. 19664380414
experimental studies with chikungunya virus in aedes aegypti and aedes albopictus. 19674383887
[metabolites of act. leveris strain 1437-19, larvicidal for mosquite aedes aegypti l., their isolation and properties]. 19684386918
characterization of phospholipase b of culex pipiens fatigans.phospholipase b has been found in the mosquito culex pipiens fatigans, and some of its properties have been studied. the enzyme had a high optimum temperature (45 degrees c) and broad alkaline ph optimum (8-9). it was inactive toward diacylphospholipids, and hydrolyzed lysolecithin at a higher rate than lysophosphatidyl ethanolamine. the enzyme was heat labile, but lysolecithin protected it against heat inactivation. phosphatidyl ethanolamine, phosphatidyl choline, deoxycholate, fe(+++), and hg( ...19694390654
investigations into yellow fever virus and other arboviruses in the northern regions of kenya.previous studies having shown an appreciable level of yellow fever immunity to exist in northern kenya, further epidemiological and serological surveys were carried out there in 1968 in an attempt to define more clearly the distribution of yellow fever and to locate possible vector and reservoir hosts of the disease; these surveys also provided information on a number of other arboviruses.altogether 436 sera from 5 areas in northern kenya were screened by haemagglutination-inhibition tests with ...19704393661
the behaviour of sub-periodic brugia malayi, buckley and edeson, in anopheles gambiae, giles and aedes aegypti, linnaeus. 19704394270
the distribution of larvae of brugia malayi and brugia pahangi in the flight muscle fibres of aedes aegypti and mansonia uniformis. 19704394923
number of plaque forming units of middelburg virus injected by aedes aegypti during feeding. 19704394996
aëdes aegypti mosquitoes as an experimental model for studies on the ecology and genetics of venezuelan equine encephalomyelitis virus. 19714398081
differential uptake of tritiated thymidine and adenine by the mosquito aedes aegypti infected with the filarial nematode brugia pahangi. 19744420187
effects of temperature on development of brugia pahangi in a susceptible strain of aedes aegypti. 19744436753
studies on filariasis. iii. dirofilaria immitis: emergence of infective larvae from the mouthparts of aedes aegypti. 19744448885
[genetics of the suceptibility of aedes aegypti to dirofilaria repens]. 19744470183
homologous interference in aedes aegypti cell cultures infected with sindbis virus. 19744474862
the effect of infection with brugia pahangi and dirofilaria repens on the egg-production of aedes aegypti. 19744480018
mosquito-borne infections in fiji. v. the 1971-73 dengue epidemic.a dengue epidemic due to type 2 virus involving some 3,400 cases began in fiji early in 1971, had a peak during may, june and july, and cases have continued to occur with a low incidence during 1972 and 1973. many of the notified cases showed classical dengue fever symptoms and there were no confirmed cases of haemorrhagic fever. a serological survey indicated that there had been at least 20,000 subclinical infections. it is probable that the virus was introduced to fiji either through the port ...19744529580
etiology of the 1965 epidemic of febrile illness in nagpur city, maharashtra state, investigation of an extensive outbreak of febrile illness during the months of april, may, and june 1965, in the city of nagpur, maharashtra state, showed that the main etiological agent was chikungunya virus. dengue type 4 and chandipura viruses were also active during this period. in all, 26 strains of virus were isolated from 60 acute phase human sera, and of these strains, 23 were identified as chikungunya virus, 2 as chandipura, and 1 as dengue type 4. five strains of chikungunya virus a ...19724537481
a survey of the distribution and relative prevalence of aedes aegypti in sabah, brunei, and sarawak.although dengue haemorrhagic fever is widely established in south-east asia, no cases have been reported from borneo. in order to help to assess whether the infection could become established in borneo, a survey was made, using the single-larva collection method, of the distribution and prevalence of the principal vector, aedes aegypti, in sabah and in a few towns and villages of brunei and sarawak. in addition, the prevalence of ae. aegypti was compared with that of certain other species of aed ...19724537482
studies on the life budget of aedes aegypti in wat samphaya, bangkok, thailand.for a complete understanding of the epidemiology of a vector-borne disease, a knowledge of the bionomics of the vector is needed. the development of aedes aegypti was studied in wat samphaya, bangkok, thailand, where work on the adult biology had been carried out the previous year (1966-67). particular attention was given to the variation in the numbers of immature stages of the mosquito in relation to the known seasonal incidence of dengue haemorrhagic fever. of the three types of water contain ...19724537483
a field trial of abate larvicide for the control of aedes aegypti in bangkok, thailand. 19724537857
suppression of a field population of aedes aegypti by malathion thermal fogs and abate larvicide. 19724538200
breeding of aedes aegypti and a. simpsoni under the escarpment of the tanzanian plateau.villages under the escarpment of the tanzanian plateau were surveyed for breeding of aedes aegypti. in some places more than 27% of the water containers outside houses harboured a. aegypti larvae, while there was practically no breeding in containers inside houses. from 2% to 10% of tree holes contained a. aegypti larvae. in places, as many as 47 a. simpsoni larvae were collected from one pineapple plant, and the total mean number of larvae per pineapple was 6.6, while the percentage of plants w ...19724538907
seasonal changes in the larval populations of aedes aegypti in two biotopes in dar es salaam, tanzania.the seasonal dynamics of larval populations of aedes aegypti was studied in two different biotopes in dar es salaam, tanzania. the first biotope was located on the msasani peninsula on the coast 6 km north of dar es salaam, where a. aegypti breeds exclusively in coral rock holes. the population dynamics was studied during both the rainy and the dry season. seasonal changes in the density of a. aegypti larvae depend primarily on variation in rainfall. the population of larvae dropped to zero only ...19724539415
dry season survival of aedes aegypti eggs in various breeding sites in the dar es salaam area, field experiments in different breeding sites in a shaded suburban area, 7-40% of a. aegypti eggs survived a 120-day dry period. in a relatively unshaded coral area, only 3-23% of eggs survived 60 days in exposed sites, but 7-17% survived 120 days in shaded sites. survival in some sites was higher than in the laboratory at constant conditions.19724539825
host preferences of various strains of aedes aegypti and a. simpsoni as determined by an olfactometer.the author describes and illustrates a new type of olfactometer that can be used to determine the host preference of different strains of stegomyia mosquitos. experiments with human and animal hosts in tanzania showed that dark strains of a. aegypti are much less anthropophilic than light strains.19724540689
genetic manipulation of aedes aegypti: incorporation and maintenance of a genetic marker and a chromosomal translocation in natural populations.studies with aedes aegypti were undertaken to determine if an alien genotype can be (1) incorporated into a natural population and (2) maintained for several generations on its own without any subsequent introductions. such information is an essential prerequisite for successful application of any genetic control method. data from a walk-in, field population cage and from field releases of a genetic marker and a chromosomal translocation have demonstrated both genetic incorporation and persisten ...19734541148
sequential application of ultra-low-volume ground aerosols of fenitrothion for sustained control of aedes aegypti.a trial was carried out of the efficacy of fenitrothion ultra-low-volume aerosol applied by vehicle-mounted cold aerosol generator for the control of aedes aegypti. five applications of fenitrothion at intervals of 11-49 days at dosages of 511-1 095 ml/ha gave sustained control for 4-5 months in an area of some 14 ha containing 1 300 houses. immediate killing of adult mosquitos and some larvicidal effect interrupted oviposition and retarded the recovery of the mosquito population. sequential tre ...19734543550
breeding places and seasonal incidence of aedes aegypti, as assessed by the single-larva survey method.the single-larva survey method was employed to study the breeding places and seasonal incidence of aedes aegypti in dar es salaam, tanzania. from may 1968 to may 1969, 28 462 containers of water-located in approximately equal numbers indoors and outdoors-were investigated. the highest frequency of breeding (8.0%) of a. aegypti was observed in tires and motor parts. drums, barrels, water-pots, and other receptacles left outdoors showed a higher frequency (3.1%) than those kept indoors (0.6%). met ...19734544149
diel periodicity in the landing of aedes aegypti on man.the dynamics of transmission of disease agents by vectors depends, in part, on the probability of host-vector contact, which can vary with fluctuations of both host and vector. as important as seasonal variations is 24-hour periodicity in activity. periodicity in the landing of males and females of aedes aegypti on man has been assessed by means of catches of 15 hours or longer, with several persons as a bait. the assessments were made in a suburban area of tanzania and continued throughout one ...19734544150
arbovirus studies in luanda, angola. 1. virological and serological studies during a yellow fever epidemic.a yellow fever epidemic broke out in luanda, angola, in january 1971 and was halted in less than 3 months by prompt mass vaccination and intensive antimosquito measures. nine strains of yellow fever virus were isolated from hospitalized cases, but attempts to isolate the virus from aedes aegypti mosquitos failed. a serological survey for antibodies to arboviruses in 589 sera from unvaccinated persons showed that two arboviruses were circulating in the epidemic area: the yellow fever virus and th ...19734545154
arbovirus studies in luanda, angola. 2. virological and serological studies during an outbreak of dengue-like disease caused by the chikungunya outbreak of dengue-like disease was observed in luanda, angola, at the end of 1970 and beginning of 1971. chikungunya virus was isolated from the blood of a patient with typical symptoms of dengue and from a pool of aedes aegypti mosquitos. a survey for antibodies to arboviruses in the sera of persons living in luanda showed that the chikungunya virus was indeed responsible for the outbreak. the fact that this outbreak immediately preceded and continued concurrently with a yellow fever epidem ...19734545155
a large-scale field trial of ultra-low-volume fenitrothion applied by a portable mist blower for the control of aedes aegypti.long-term control of aedes aegypti, the vector of dengue haemorrhagic fever in thailand, was obtained by 2 thorough applications of fenitrothion mist applied at a target dosage rate of 0.1 ml per m(3) of room space. perfect control lasted for 6-7 months after treatment and densities were substantially reduced for up to a year after treatment. recovery of the population was still slow up to almost 16 months after treatment. this degree of control was achieved by the immediate mortalities produced ...19744549492
[transmission of wuchereriasis and of bovine setariasis: histological study of the passage of microfilariae through the stomach wall of anopheles gambiae a and aedes aegypti]. 19724565488
[entomological notes. vi. septentrional localization of aedes aegypti]. 19724650815
a mosquito-chymotrypsin inhibitor in tissues of adult aedes aegypti. 19724653158
dengue virus transmission by aedes aegypti mosquitoes following intrathoracic inoculation. 19734684883
susceptibility to brugia pahangi in geographic strains of aedes aegypti. 19734684889
differential development of brugia pahangi in laboratory strains of aedes aegypti. 19734707755
field studies on the gonotrophic cycle of aedes aegypti in bangkok, thailand. 19734707760
prevalence of aedes aegypti and aedes albopictus and observations on the ecology of dengue haemorrhagic fever in several areas of thailand. 19734718121
[studies on the heredity of susceptibility to the canine filaria, dirofilaria immitis, in culex pipiens fatigans and aedes aegypti]. 19734733216
distribution of a gene for susceptibility to plasmodium gallinaceum in populations of aedes aegypti (l.). 19734744523
recovery of dengue-2 virus from aedes aegypti in colombia. 19734745238
hybridization between aedes aegypti and aedes albopictus in malaysia. 19734749074
residual effectiveness of ulv aerosols against aedes aegypti in bangkok: a study of sumithion and malathion applied by a portable ulv machine. 19734749075
plasmodium gallinaceum: effects of various compounds on immunity of susceptible aedes aegypti and refractory culex pipiens pipiens. 19734773578
plasmodium gallinaceum: development in aedes aegypti maintained on various carbohydrate diets. 19734773579
factors influencing the vector potential of aedes aegypti and culex quinquefasciatus for wesselsbron virus. 19734779922
multiplication of semliki forest virus in the tissues of aedes aegypti cultured in vitro. 19734787713
a new phosphoglucomutase (pgm) allele in aedes aegypti (diptera, culicidae). 19734788356
escape of infective larvae of brugia pahangi from aedes aegypti into water. 19734788761
[experimental infection of aedes aegypti and culex pipiens molestus mosquitoes with tiuleniia virus]. 19734805416
development of the filarial nematode, brugia pahangi, in aedes aegypti mosquitoes: nondependence upon host hormones. 19744814787
the relationship between plasmodium gallinaceum density and the fecundity of aedes aegypti. 19744819576
the development of brugia pahangi in male aedes aegypti of "refractory" genotype. 19744854716
growth of arboviruses in primary tissue culture of aedes aegypti embryos. 19684869110
[histology of the mosquitoe (aedes aegypti) bite]. 19674873892
[propagation of "marburg virus" (vervet monkey disease agent) in aedes aegypti]. 19684915131
monofactorial inheritance of susceptibility to plasmodium gallinaceum in aedes aegypti. 19694915499
the development of plasmodium gallinaceum brumpt in the hemocoels of refractory culex pipiens pipiens linn. and susceptible aedes aegypti (linn.). 19684919048
current status of aedes aegypti eradication in the western hemisphere. 19674951703
further studies on the genetic aspects of the infection of aedes aegypti with plasmodium gallinaceum. 19664957841
sporoblast and sporozoite formation in plasmodium gallinaceum infection of aedes aegypti. 19664957849
transmission of african horse-sickness by a species of mosquito, aëdes aegypti linnaeus. 19664960145
biological aspects in the transmission of brugia malayi by aedes aegypti in the laboratory. 19664964879
isolation of zika virus from aedes aegypti mosquitoes in malaysia. 19694976739
the isolation and properties of the skin-reactive substance in aedes aegypti oral secretion. 19694983292
virulence and pathogenesis of yellow fever virus serially passaged in cell culture.viscerotropic virulence of the asibi strain of yellow fever virus (yfv) for monkeys has been known to be lost after serial passage in hela cell monolayers. this phenomenon was investigated in several other mammalian and insect tissue cell lines. assay in monkeys of original seed virus and of virus after 7 and 11 passages in a porcine kidney cell line (pk) indicated essentially equal infectivity and mortality. moreover, monkeys receiving the passaged virus exhibited more rapid onset of disease an ...19714998347
comparison of three methods used to isolate dengue virus type 2.during the 1969 dengue epidemic in puerto rico, human sera and aedes aegypti mosquitoes were collected for virus isolation and identification. three methods of isolation were used and compared. in the first method, we inoculated newborn mice by the intracranial route, noted any signs of illness, and serially passed specimens in mice until virus was isolated. in the second method, we inoculated tube cultures of llc-mk(2) cells, noted any cytopathic effect (cpe), and assayed fluids for virus by pl ...19715002896
vi. comparative lipid analysis of aedes aegypti and monkey kidney cells (mk-2) cultivated in vitro. 19715003968
biological observations on aedes seatoi huang in thailand with notes on rural aedes aegypti (l.) and other stegomyia populations. 19725019204
pilot studies of abate as a larvicide for control of aedes aegypti in bangkok, thailand. 19725028856
plasmodium gallinaceum: comparative infection rates in aedes aegypti and anopheles quadrimaculatus. 19725049753
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