Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| experimental vertical transmission of japanese encephalitis virus by culex tritaeniorhynchus and other mosquitoes. | vertical transmission of japanese encephalitis virus to the f1 adult stage was demonstrated in culex tritaeniorhynchus, cx. annulus, cx. quinquefasciatus, and armigeres subalbatus. transmission to the f1 larval stage was demonstrated in cx. pipiens, aedes vexans, ae. alcasidi, and a. flavus. in cx. tritaeniorhynchus, vertical transmission rates (the percentage of parent females transmitting to progeny) varied (12-100%). filial infection rates (the percentage of progeny infected) for a given mosq ... | 1989 | 2567124 |
| studies on the japanese encephalitis vectors in amphoe muang, chiang mai, northern thailand. | from february 1987 to january 1988, biological and ecological studies were made to obtain the basic knowledge of japanese encephalitis vectors, culex tritaeniorhynchus, cx. gelidus, and cx. fuscocephala, in amphoe muang, chiang mai, northern thailand. the following results were found. peaks in the population densities of the vectors as measured four times a month, by uv-light trap and human-baited trap collections, occurred during rainy season. the je vectors in rural areas showed a sharp rise i ... | 1989 | 2549646 |
| [comparative studies on diapause responses between culex tritaeniorhynchus and culex pipiens pallens]. | by comparing the diapause responses between locally hibernating species, c. pipiens pallens, and c. tritaeniorhynchus the overwintering way of which is yet unknown, we found the relative identities of these 2 species in their ovarian diapause criteria, change of the mid-gut and the behaviour of refusing blood feeding. the increases in body weight and fatty contents in the dispersed tritaeniorhynchus were much less than those in diapause pipiens species. moreover, their ability to resist low temp ... | 1989 | 2766496 |
| enzyme-linked immunosorbent assay to detect antigens of dirofilaria immitis (spirunida: filariidae) larvae in aedes albopictus and culex tritaeniorhynchus (diptera: culicidae). | an enzyme-linked immunosorbent assay (elisa) method was developed for detecting the larval antigens of dirofilaria immitis (leidy) in aedes albopictus (skuse) and culex tritaeniorhynchus giles to replace the conventional dissection method. the assay was sensitive enough to detect 21.3 ng/ml (2.13 ng per microplate well) or more of the soluble antigen obtained from adult worms and an antigen amount corresponding to at least one larva at any developing stage. no inhibitory effect of host tissues w ... | 1989 | 2709386 |
| size of blood meals of aedes albopictus and culex tritaeniorhynchus (diptera: culicidae) feeding on an unrestrained dog infected with dirofilaria immitis (spirurida: filariidae). | blood meal volume was determined for two species of mosquitoes, aedes albopictus (skuse) and culex tritaeniorhynchus giles, recently demonstrated to be natural vectors of canine heartworm in japan. when fed on unrestrained dogs, volumes were from 1 nl to 6 microliters in both species, but percentages of engorged mosquitoes were 45.2-64.3% for ae. albopictus and 11.9-22.2% for cx. tritaeniorhynchus. ae. albopictus preferred to feed on human bait versus canine bait when both were exposed concurren ... | 1989 | 2585448 |
| japanese encephalitis virus infection in mosquitoes reared from field-collected immatures and in wild-caught males. | immature stages of mosquitoes collected in je endemic areas of karnataka, india between 1985 and 1987 were reared to adults and processed for the detection and isolation of japanese encephalitis (je) virus in an attempt to find naturally occurring vertical transmission of the virus. males collected during 1985-1986 were also processed. a total of 15,785 adults reared from immatures and divided into 445 pools and 1,756 wild-collected males divided into 128 pools were processed using mosquito inoc ... | 1989 | 2577098 |
| mosquito collection in endemic areas of japanese encephalitis in hokkaido, japan. | a study was conducted during 1985 and 1986 to evaluate the roles of mosquito species as possible vectors of japanese encephalitis (je) virus in hokkaido. the number of culex tritaeniorhynchus was very low among the four pig farms where outbreaks of abortion caused by je virus were observed in swine populations. at one farm near sapporo, only one cx. tritaeniorhynchus was found among a total of 510 mosquitoes collected during the survey period from july to october 1985, even when je virus activit ... | 1989 | 2575185 |
| culex tritaeniorhynchus and aedes albopictus (diptera: culicidae) as natural vectors of dirofilaria immitis (spirurida: filariidae) in miki city, japan. | natural infections with dirofilaria immitis (leidy) in a population of mosquitoes and dogs and its antibodies in a human population were surveyed in miki city, a rural area of japan, to reveal ecological features of this arthropod-borne zoönotic parasite. microfilaremic and amicrofilaremic infection rates in 190 dogs were 52.6 and 9.0%, respectively, as determined by the hematocrit centrifuge method and the indirect fluorescent antibody test. an enzyme-linked immunosorbent assay (elisa) test for ... | 1989 | 2769708 |
| susceptibility of aedes albopictus and culex tritaeniorhynchus (diptera: culicidae) collected in miki city, japan, to dirofilaria immitis (spirurida: filariidae). | female aedes albopictus (skuse) and culex tritaeniorhynchus giles from miki city, japan, were examined for susceptibility to infection by dirofilaria immitis. third-stage larvae were detected from day 7 in 10-40% of ae. albopictus and from day 10 in 20-60% of cx. tritaeniorhynchus, irrespective of microfilarial intake, which varied from 500 to 15,000 microfilariae per ml. the number of third-stage larvae in the labium usually varied from one to three per mosquito up to day 21, confirming the abi ... | 1989 | 2795613 |
| [study on inhibiting effect of 14 insecticides on esterase of culex tritaeniorhynchus from five geographic populations]. | isoelectrofocusing technique was used to study the inhibiting effect of 14 insecticides on esterase isozymes of culex tritaeniorhynchus from natural populations in fuzhou, shanghai, qingdao, dalian and beijing areas. among 14 insecticides, organophosphates were good inhibitors to all esterase isozymes, but allethrin, propoxur, ddt, dieldrin had no or almost no inhibiting effect on esterase. 26 esterase isozyme bands of culex tritaeniorhynchus were revealed by isoelectrofocusing. | 1989 | 2776195 |
| oxo-type organophosphate-resistant acetylcholinesterase from organophosphate-unsusceptible culex tritaeniorhynchus. | 1988 | 3378294 | |
| evaluation of permethrin-impregnated mosquito-nets against mosquitoes in china. | in yishan county, guangxi province, china, where malaria and brugian filariasis are transmitted by vectors belonging to the anopheles hyrcanus pallas group, a study was conducted from june to november 1986 to evaluate the effectiveness of permethrin-impregnated mosquito bednets to reduce man/vector contact. in three experimental villages a total of 246 mosquito nets were treated with permethrin ec at a dosage of 0.5 g/m2. control bioassays (1 h exposure) of treated nets gave up to 100% mortality ... | 1988 | 2908784 |
| absence of viraemia in cattle after experimental infection with japanese encephalitis virus. | cow calves were infected with japanese encephalitis virus (jev) by parenteral inoculation. one batch was reinfected with jev, followed by west nile virus (wnv), while another batch was reinfected directly with wnv. no viraemia due to either jev or wnv was demonstrated in any of the calves. culex tritaeniorhynchus mosquitoes fed on 4 of the calves infected with jev during the first 10 d had no detectable virus, nor did they transmit the virus by bite to susceptible baby chickens. in another exper ... | 1988 | 2855679 |
| insecticidal resistance of culex tritaeniorhynchus (diptera: culicidae) in japan: a country-wide survey of resistance to insecticides. | 1987 | 3694624 | |
| new spiroplasmas from insects and flowers: isolation, ecology, and host association. | eight spiroplasma strains from insects and one from spring flowers failed to react with antisera specific for any of the 11 described spiroplasma groups, with sera directed against spiroplasma group i subgroups, or with sera directed against two unnumbered groups previously reported to occur in tabanid flies. strains, all from maryland, were isolated from the hemolymph of the spotted cucumber beetle diabrotica undecimpunctata and the lampyrid beetle ellychnia corrusca, and the guts of the cantha ... | 1987 | 2889699 |
| the pathogenesis of japanese encephalitis virus in culex tritaeniorhynchus mosquitoes. | culex tritaeniorhynchus were inoculated intrathoracically with mosquito and human strains of japanese encephalitis virus and maintained at 26 degrees c or 32 degrees c. virus titration and localization of viral antigen by avidin-biotin immunoperoxidase staining were done at intervals up to 21 days. marked differences were noted in the tempo of organ involvement at the 2 temperatures; at both there was initial infection of fat body cells followed by selective infection of the central nervous syst ... | 1987 | 3445354 |
| a longitudinal study of japanese encephalitis in suburban bangkok, thailand. | a one-year study of japanese encephalitis (je) in a small focus of transmission was conducted in suburban bangkok in 1985. monthly data were collected on weather, vector density, sentinel pig and chick je antibody seroconversions, and epidemiology as related to human je cases. the primary vector species were found to be culex gelidus and culex tritaeniorhynchus; from which one isolate each was obtained in march and june, respectively. pig je antibody seroconversion peaked in april (the hottest m ... | 1987 | 2896391 |
| insecticidal resistance of culex tritaeniorhynchus (diptera: culicidae) in japan: genetics and mechanisms of resistance to organophosphorus insecticides. | 1987 | 3694623 | |
| population dynamics of some pakistan mosquitoes: temporal changes in reproductive status, age structure and survivorship of anopheles culicifacies, an. stephensi and culex tritaeniorhynchus. | the reproductive biology and age-structure of female anopheles culicifacies, an. stephensi and culex tritaeniorhynchus were studied at rural punjabi villages near lahore, pakistan, during 1976-1980. both anopheles remained gonotrophically active throughout the year with blood-fed, gravid, parous and virgin females collected during all months. culex tritaeniorhynchus populations bifurcated into reproductively active, non-overwintering and reproductively inactive, overwintering populations in octo ... | 1986 | 3729600 |
| virus isolations from mosquitoes collected during the 1982 japanese encephalitis epidemic in northern thailand. | from 16 june to 15 august, 1982 cdc light traps were used to collect mosquitoes in the province of kamphaengphet, n. thailand. 353,042 mosquitoes comprising 59 species were collected and identified, and 345,173 were placed in pools for attempted virus isolation by inoculation of c6/36 aedes albopictus mosquito cell cultures. viruses were isolated from 63 mosquito pools. these comprised 56 flaviviruses, identified as 35 isolates of japanese encephalitis (je) virus strains, 18 strains of tembusu ( ... | 1986 | 2885948 |
| incipient resistance to malathion in culex (culex) tritaeniorhynchus larvae from arthala (u.p.). | 1986 | 3745868 | |
| beneficial role of a nonpathogenic orbi-like virus: studies on the interfering effect of m14 virus in mice and mosquitoes infected with japanese encephalitis virus. | m14 virus, isolated from culex tritaeniorhynchus mosquitoes collected in a beijing suburb, was identified as a noncytopathogenic orbi-like virus. it was found to interfere with the growth of japanese encephalitis (je) virus, a mosquito-borne virus which infects humans, pigs, and horses in much of asia, including china. je virus is transmitted by c. tritaeniorhynchus mosquitoes and causes encephalitis in humans and horses and abortion in pigs. because it had potential as an interfering agent for ... | 1985 | 2999029 |
| correlation of population indices of female culex tritaeniorhynchus with japanese encephalitis viral activity in kapuk, indonesia. | nineteen consecutive monthly light trap collections of mosquitoes were made between october 1978 and april 1980 in kapuk, indonesia. kapuk is a small suburb of jakarta where pigs are raised in close proximity to rice paddies which are breeding sites for culex tritaeniorhynchus. japanese encephalitis (je) virus is believed to be endemic and has been recovered from mosquitoes and pigs in the area on several occasions. a total of 18,435 female cx. tritaeniorhynchus were allocated to 359 pools of ap ... | 1985 | 4071204 |
| isolation of japanese encephalitis virus from anopheles annularis and anopheles vagus in lombok, indonesia. | three strains of japanese encephalitis (je) virus were recorded from mosquitoes collected in lombok, indonesia, during march 1979, from pools of anopheles vagus, an. annularis and culex tritaeniorhynchus respectively. this is believed to be the first report of isolation of je virus from an. vagus. the frequencies of je viral infection in zoophilic anopheles species were higher than in cx tritaeniorhynchus, the principle vector of je virus in asia. the low frequency of infection in cx tritaeniorh ... | 1985 | 3832495 |
| [low virulent strains of jbe virus isolated from culex tritaeniorhynchus in indonesia]. | 1985 | 3995575 | |
| disease-bearing insects brought in by international aircraft into singapore. | fifty-seven (17.3%) of 330 incoming aircraft landing at changi international airport were found to harbour mosquitoes and other insects on board. the frequency of insects detected in aircraft from the southeast asian countries varied from 7.1% to 32.2%. live insects were found in 5 (6.1%) of 82 aircraft disinsectized by the "block away" method. the species of mosquitoes brought in were: culex quinquefasciatus (96), culex tritaeniorhynchus (1), aedes albopictus (2) and aedes aegypti (1). none of ... | 1985 | 2862709 |
| seasonal prevalence of the vector mosquitoes of japanese encephalitis virus in kyungpook province, korea. | in order to determine the seasonal prevalence and population density of vector mosquitoes in kyungpook province, a survey based on average number of female mosquito per trap-night, were carried out during the period from may to november in 1984. among the 34,571 mosquitoes collected in kyungsan county in animal shelters and human dwellings by light traps, approximately 45.0 % were culex tritaeniorhynchus, 34.0 % per cent culex pipiens pallens, and 19.0 per cent anopheles sinensis. by comparison, ... | 1985 | 12888695 |
| genetic variation for west nile virus susceptibility in culex tritaeniorhynchus. | mutant and geographical strains of culex tritaeniorhynchus were compared for west nile (wn) virus susceptibility by feeding on a high-titered blood-virus suspension. eleven strains also were selected from 2-21 generations for an increase and/or a reduction of oral susceptibility using 90% and 10% infective virus doses, respectively. only one of the 20 strains tested, e ma, was significantly less susceptible than the control strain. in the selection experiments, none of the strains showed a consi ... | 1984 | 6476219 |
| a simplified new method for the identification of arboviruses: virus detection using enzyme immunoassay on cultured cells. | a simple new method is reported for the identification of arbovirus isolates and the titration of arboviruses. horseradish peroxidase conjugated staphylococcus aureus protein a was used for the indirect staining of virus antigens grown in an aedes albopictus cell line, c6/36 cells. thirty-five isolates from culex tritaeniorhynchus mosquitoes were examined by this method and 20 of these were identified as japanese encephalitis virus (jev). these results were confirmed by immunofluorescent assay a ... | 1984 | 6094608 |
| susceptibility of culex (culex) tritaeniorhynchus giles adults and larvae to insecticides in delhi area. | 1983 | 6672087 | |
| correlation between population indices of culex tritaeniorhynchus and cx. gelidus (diptera: culicidae) and rainfall in kapuk, indonesia. | 1983 | 6827571 | |
| [comparative infectivity of japanese encephalitis vaccine strain (2-8) and its parent strain (sa14) viruses in culex tritaeniorhynchus mosquitoes]. | 1983 | 6233028 | |
| relationship between number of human japanese encephalitis cases and summer meteorological conditions in nagasaki, japan. | analysis of epidemiological and meteorological data for nagasaki prefecture, southwest japan, for the period 1950-1979, showed a correlation between size of epidemics of human japanese encephalitis (je) and weather factors. it was demonstrated that during the period 1950-1969 the epidemic size (es) had two types of correlation: es correlated inversely with total summer precipitation, and es correlated directly with mean summer temperature. the fact that in the 1970s there were fewer cases of je ... | 1983 | 6297324 |
| [a survey on infection rate of japanese encephalitis virus in culex tritaeniorhynchus in beijing area]. | 1983 | 6675847 | |
| getah virus in aedes vexans nipponii and culex tritaeniorhynchus: vector susceptibility and ability to transmit. | vector competences of aedes (ae.) vexans nipponii (nip.) and culex (cx.) tritaeniorhynchus to getah virus were assessed by using a membrane feeding technique. the getah virus was present at high titer in both species of mosquitoes after 21 days of extrinsic incubation at 28 degrees c. infection rates on 21 post-feeding were 100 per cent (4/4) for ae. vexans nip. at a virus dosage of 10(5.3) pfu/ml and 60 per cent (3/5) for cx. tritaeniorhynchus at similar virus dosage. more than 10(3.5) pfu of v ... | 1983 | 6312927 |
| multiplication of several arboviruses isolated in japan in culex tritaeniorhynchus. | 1983 | 6633301 | |
| [experimental breeding of a culex tritaeniorhynchus population and study of certain aspects of its life history]. | 1983 | 6640633 | |
| west nile virus in pakistan. iii. comparative vector capability of culex tritaeniorhynchus and eight other species of mosquitoes. | eight species of mosquitoes from pakistan were compared with culex tritaeniorhynchus as experimental vectors of west nile (wn) virus. when fed by the membrane or cotton-pledget methods on a dose of wn virus 100% infective for cx tritaeniorhynchus, 95% and 73% of the females of cx fuscocephala and cx pseudovishnui became infected, respectively. cx quinquefasciatus, cx univittatus, aedes albopictus, ae. caspius, ae. indicus and ae. lineatopennis were all significantly less susceptible than cx trit ... | 1982 | 6134362 |
| japanese encephalitis vaccine (2-8 strain) and parent (sa 14 strain) viruses in culex tritaeniorhynchus mosquitoes. | the japanese encephalitis vaccine virus (je 2-8) and its parent virus (je sa 14) strains were compared for their ability to infect, to replicate in, and to be transmitted by culex tritaeniorhynchus mosquitoes. both viruses replicated in the mosquitoes after intrathoracic infection. the je 2-8 vaccine was transmitted to 1/36 (3%) of suckling mice bitten by intrathoracically infected mosquitoes; however, the parent je sa 14 strain was transmitted to 46/46 (100%) of the mice bitten. in oral infecti ... | 1982 | 7072902 |
| neutralization antibody responses induced by japanese encephalitis virus vaccine. | single doses of japanese encephalitis (je) vaccine of the nakayama strain were given to members of the staffs of a hospital and 99 paired-sera were obtained. neutralization antibody titers of the sera were determined against the nakayama strain and e-50 strain, isolated from wild culex tritaeniorhynchus using clone c6/36 of singh's aedes albopictus mosquito cell culture. post-vaccination sera showed a significant neutralizing antibody response against both the nakayama and e-50 strain. the geome ... | 1981 | 7346039 |
| dual infections of culex tritaeniorhynchus with west nile virus and nosema algerae. | culex tritaeniorhynchus females infected with the microsporidian nosema algerae, and uninfected control females were compared for susceptibility to infection with west nile (wn) virus and for the ability to transmit virus. when fed on a high titered dose fo virus, 95% of the control females became infected, whereas only 65% of the n. algerae-infected females were infected with wn virus. however, at two lower viral doses, no differences in susceptibility were observed. no significant differences ... | 1981 | 6790696 |
| isolation of viruses from female culex tritaeniorhynchus in aedes albopictus cell cultures. | isolation of viruses from female culex tritaeniorhynchus was performed by inoculation of specimens into aedes albopictus clone c6/36 cells as well as into suckling mouse brains (smb). altogether, 32,812 mosquitoes in 349 pools were processed from the specimens collected in osaka prefecture during the summer of 1978. thirty-nine strains of japanese encephalitis virus (jev) were isolated in c6/36 cells in contrast to 27 strains in smb. twenty-four pools yielded jev both in cell cultures and in smb ... | 1981 | 7235135 |
| overwintering of culex tritaeniorhynchus giles in delhi area. | 1981 | 7320489 | |
| a simple technique for colonization of culex tritaeniorhynchus giles. | 1981 | 7343608 | |
| integration of larvivorous fish and temephos for the control of culex tritaeniorhynchus breeding. | 1981 | 6172460 | |
| genetic and linkage analyses of maroon eye and acid phosphatase i in culex tritaeniorhynchus. | maroon eye (ma) and the acid phosphatase i (acph-i) system of culex tritaeniorhynchus giles were subjected to genetic and linkage analyses. both loci are linked to the linkage group 2 locus, ebony body (e), and the gene sequence is ma - e - acph-i. experiments also revealed that maroon eye is temperature sensitive. | 1980 | 7448623 |
| [control of arboviral encephalitis in china (author's transl)]. | japanese b encephalitis is the most important and widespread arbovirus disease in china. except tibet and sinjiang autonomous regions, it occured in every province. jbe virus were isolated from six species of culex, three species of aedes, one species of anopheles and lasiohelea. the main vector of jbe virus in china is culex tritaeniorhynchus. the main spreading reservoir host, no doubt, is the pig, but the persistant reservoir is not clear yet. vaccination of the children under ten years is an ... | 1980 | 6255282 |
| isolation of japanese encephalitis virus from the republic of the philippines. | a total of 33, 274 mosquitoes was collected from tagudin, ilocos sur province, philippines during july 1977. isolates made from one pool of culex tritaeniorhynchus and one pool of c. vishnui were identified as japanese encephalitis virus (jev) by a micro-neutralization test using reference hyperimmune mouse ascitic fluids. this is the first known isolation of jev from the philippines. | 1980 | 6108000 |
| vector competence of culex tritaeniorhynchus (diptera: culicidae) for west nile virus. | 1980 | 6988591 | |
| additional isolations of japanese encephalitis virus from the philippines. | japanese encephalitis virus was isolated from culex tritaeniorhynchus, culex bitaenorhynchus and anopheles annularis mosquitoes collected from san jose, nueva ecija, south central luzon in the philippines. this is the second report of the isolation of the virus from mosquitoes in the philippine islands. | 1980 | 7221693 |
| transovarial transmission of japanese encephalitis virus by culex tritaeniorhynchus mosquitoes. | 1980 | 6250416 | |
| variation in susceptibility among colony strains of culex tritaeniorhynchus to japanese encephalitis virus infection. | the susceptibilities to japanese encephalitis virus of eight strains of culex tritaeniorhynchus, seven domestic and one from taiwan, were studied quantitatively by the membrane feeding technique. six of them, originated from the main islands of japan (honshu and kyushu) and okinawa, had moderate susceptibilities to the virus. one strain from amami island was slightly more susceptible than moderate strains and was sixfold more susceptible than taiwan strain. the differences, were statistically si ... | 1980 | 7265557 |
| comparison of vector competence for west nile virus of colonized populations of culex tritaeniorhynchus from southern asia and the far east. | seven colonized stocks of cx. tritaeniorhynchus from different geographic areas of southern asia and the far east were assayed for susceptibility to wn virus infection by membrane feeding and by intrathoracic inoculation. infected females also were tested for their ability to transmit virus to baby mice. no geographic pattern of differential susceptibility to wn virus infection was apparent from the experiments; however, the per os id50 of one strain from khulna, bangladesh was over 10-fold grea ... | 1979 | 538499 |
| japanese encephalitis virus in mosquito salivary glands. | culex tritaeniorhynchus and c. pipiens mosquitoes were infected with japanese encephalitis virus either by intrathoracic injection or by membrane feeding. the virus maturation sites and the process of virus particle concentration in salivary gland cells were studied by electron microscopy. occurrence of mature virions was primarily associated with intracytoplasmic viral matrices which were extraordinarily large and had a perinuclear location in c. pipiens mosquitoes. the other sign of virus repl ... | 1979 | 219722 |
| horizontal and vertical estimates of immature survivorship for culex tritaeniorhynchus (diptera: culicidae) in pakistan. | 1979 | 537004 | |
| epidemiological studies on japanese encephalitis in kyoto city area, japan. i. evidence for decrease of vector mosquitoes. | mosquito collections by using light traps have been carried out at 10 to 11 stations in kyoto city area at intervals of about 10 days every year. mean percent indexes (mpi), being calculated from the data of mosquito collections, were used for comparison of the annual abundance of mosquitoes. it is no doubt that culex tritaeniorhynchus summorosus has decreased recently and this decrease is correlated with the reduction of human patients of japanese encephalitis. wide use of two herbicides, cnp a ... | 1978 | 207913 |
| epidemiological studies on japanese encephalitis in kyoto city area, japan. ii. annual patterns of virus dissemination on virus recoveries from unfed culex tritaeniorhynchus summorosus. | annual patterns of dissemination of japanese encephalitis virus in vector mosquitoes have been investigated at the main collection station from 1965 through 1973 at some other stations from 1969 through 1971. the virus was recovered usually from culex tritaeniorhynchus summorosus during a period of about a month from july to august every year till 1969, and from august to september after 1970, although at some of the stations the virus was recovered intermittently for longer or shorter terms. hi ... | 1978 | 207914 |
| epidemiological studies on japanese encephalitis in kyoto city area, japan. iii. seasonal prevalence of virus infections in several pig populations shown by virus recovery from engorged culex tritaeniorhynchus summorosus. | when vector mosquitoes engorged by feeding on pigs are tested for virus recovery after incubation for 7 to 10 days, the results may show mosquito infection itself. therefore, seasonal prevalence of infection in each pig population can be estimated from course of the infection rate among mosquitoes. many mosquitoes of the main vector of japanese encephalitis virus, culex tritaeniorhynchus summorosus, collected by light traps everyday or every other day in some pig sheds from 1967 to 1970 were tes ... | 1978 | 215807 |
| a mark-release-recapture experiment with culex tritaeniorhynchus giles. | 1978 | 653789 | |
| epidemiological studies on japanese encephalitis in kyoto city area, japan. iv. natural infection in sentinel pigs. | natural infection with japanese encephalitis virus in three sentinel pigs held in separate experimental huts was examined daily by virus recovery from blood samples of the pigs and from mosquitoes after incubation for about 7 days from their blood feeding and by hi antibody titration of the blood samples. after a period of low infection rates, below 6%, for about two weeks in engorged culex tritaeniorhynchus summorosus, high mosquito infections of over 30% from each viremic pig occurred for two ... | 1978 | 213633 |
| a quantitative mosquito survey of 7 villages in punjab province, pakistan with notes on bionomics, sampling methodology and the effects of insecticides. | a total of 451,337 female and male mosquitoes comprising 43 species in 9 genera were collected during a quantitative survey of 7 suburban and rural villages in the lahore area during 1976 and 1977 using larval, indoor resting, outdoor resting, biting and light trap collections at weekly intervals. culex tritaeniorhynchus was the most abundant species collected comprising 51.8% of the total specimens, followed by cx. quinquefasciatus (16.4%), cx. pseudovishnui (6.8%), an. subpictus (4.8%) and an. ... | 1978 | 35839 |
| kaikalur virus--a new arthropod-borne virus belonging to the simbu group isolated in india from culex tritaeniorhynchus (giles). | 1977 | 608738 | |
| evaluation of dursbanr and dowco 214 as mosquito larvicides in rice-fields. | emulsifiable concentrates of dursbanr (chlorpyrifos) and dowco 214 (chlorpyrifos-methyl) were tested as mosquito larvicides using hudson knapsack sprayers on small plots of rice-fields on penang island. the mosquitoes found in these rice-fields are predominantly anopheles campestris and culex tritaeniorhynchus. at dosages of 14, 28 and 56 gm hectare-1, dursban is effective in maintaining the rice-fields free of anopheles larvae for at least 2, 3 and 7 days respectively. dowco 214 at 56 gm hectar ... | 1977 | 70078 |
| observations on mating behavior and survivorship of culex tritaeniorhynchus giles (diptera: culicidae) during late autumn. | virgin culex tritaeniorhynchus males and females from a laboratory strain and the progeny of wild-caught females were released at a rural village on the outskirts of lahore during late autumn to study mating behavior in nature at a time when population abundance was declining. although both released and endemic males were numerous, few recaptured females were inseminated. apparently during late autumn there normally is a cessation of mating activity as the population begins to enter the overwint ... | 1977 | 614715 |
| the genetics of curly, a dominant, sex-linked mutant of culex tritaeniorhynchus. | 1977 | 845906 | |
| the influence of physiological age on the biting rhythm of culex tritaeniorhynchus giles (diptera : culcidae) | all of 704 cx. tritaeniorhynchus females caught on bufflo bait were inseminated and 98 % were at ovariole stage 1. parity rates ranged from 41 % to 66 % on the 4 nights studied with increases observed during dusk, midnight and before dawn. changes in the parity of the biting population were related to sexual maturation, mating, oviposition rhythms and especially the survivorship of the adults. | 1977 | 564554 |
| the effects of climatic patterns and agricultural practices on the population dynamics of culex tritaeniorhynchus in asia. | annual population curves for c. tritaeniorhynchus are presented for representative localities distributed from pakistan, east through southeast asia and the philippines and north to japan and korea. in the dry temperature (pakistan) and colder maritime climates (japan and korea). c. tritaeniorhynchus populations apparently overwintered as hibernating adults, while in the warmer maritime climates (okinawa and taiwan), gonotrophic activity and larval development continued throughout the winter mon ... | 1976 | 1027111 |
| amylase isozymes in the mosquito, culex tritaeniorhynchus. | a survey of laboratory stocks of culex tritaeniorhynchus giles has uncovered the presence of four electrophoretic variants and one apparent null allele of amylase. linkage experiments with heterozygous males indicate that amylase is sex-linked. the gene sequence is w (white eye) - amy (amylase) - m (sex), and the recombination frequencies are: w - amy = 6.02%, amy - m = 1.35% and w - m = 7.37%. | 1976 | 938977 |
| phospholipid composition of culex quinquefasciatus and culex tritaeniorhynchus cells in logarithmic and stationary growth phases. | culex quinquefasciatus and culex tritaeniorhynchus cells were grown in spinner culture and harvested in logarithmic and stationary phases of growth. the phospholipids were extracted from the cells, and the fatty acid profiles of the phospholipid classes were determined and compared. the major components were phosphatidylcholine and phosphatidylethanolamine, constituting greater than or equal to 80% of the phospholipid. the fatty acid profiles of lysophosphatidylcholine, phosphatidylinositol, and ... | 1976 | 994762 |
| comparison of the lipid composition of culex quinquefasciatus and culex tritaeniorhynchus cells obtained from the logarithmic and stationary phases of growth. | culex quinquefasciatus and culex tritaeniorhynchus cells were grown in spinner culture medium. the cells were harvested at late logarithmic and stationary phases of growth. the total lipid, total neutral lipid, and total phospholipid contents of the cells were analyzed to determine changes that occurred in the fatty acid profiles of the lipids with aging and between species. there was an increase in the amount of total neutral lipids with a corresponding decrease in amount of total phospholipid ... | 1976 | 1250065 |
| neutral lipid composition of culex quinquefasciatus and culex tritaeniorhynchus cells at two phases of growth. | the mosquito cells culex quinquefasciatus and culex tritaeniorhynchus were grown in spinner cultures. the fatty acid profiles of the neutral lipid classes were analyzed, and comparisons were made between the two species at logarithmic and stationary phases of growth and between the species and the medium. the results from the data suggest an increase in the average chain length of the fatty acids in the free fatty acid and sterol ester fractions of the culex quinquefasciatus cells with aging. fr ... | 1976 | 1250064 |
| preliminary results of an entomological survey of the potential arbovirus vectors in the french territory of afars and issas. | the preliminary results of an entomological survey of the potential arbovirus vectors in the french territory of afars and issas are exposed. 25 culicid species were recorded, specially anopheles gambiae, culex tritaeniorhynchus, c. univittatus, c. pipiens fatigans, aedes caspius, ae. vittatus, ae. arabiensis. ae. aegypti larvae were collected on a dhow arriving in djibouti. 5 species of ticks and 4 sandfly speices were also recorded. the epidemiological modalities of certain arboviroses in this ... | 1976 | 13940 |
| a note on culex tritaeniorhynchus giles, 1901, in villages near delhi. | 1976 | 965070 | |
| japanese encephalitis virus in northern taiwan, 1969-1973. | sentinel pigs were bled and mosiquitoes were collected for isolation of japanese encephalitis virus (jev) between 1969 and 1973 in a rural area of northern taiwan which reported a high annual incidence of human cases. the study site included a farmyard, schools, a bat cave, rice paddies and a heronry. although culex annulus was collected in every month of the year, isolations were made only in midsummer and only from culex annulus and (once) from culex tritaeniorhynchus. these isolates were usua ... | 1976 | 180845 |
| arbovirus infections in sarawak: the role of the domestic pig. | the possible role of pigs as arbovirus maintenance hosts and their importance as amplifier hosts was studied. blood samples from 464 pigs of all ages collected in 1962 and 1964 were tested against 10 arboviruses. antibodies to japanese encephalitis and getah viruses were particularly prevalent and their calculated monthly infection rates were 19-5% and 13-3% respectively. in 1969, 447 pigs were bled monthly throughout the year and the infection rates for japanese encephalitis virus were calculat ... | 1976 | 1265821 |
| the effects of environmental and physiological conditions of culex tritaeniorhynchus on the pattern of transmission of japanese encephalitis virus. | 1976 | 1011230 | |
| japanese encephalitis virus plaque formation in culex tritaeniorhynchus cell monolayers. | 1975 | 49929 | |
| host preference of mosquito vectors of japanese encephalitis. | the host preference of 4 culex mosquito species collected in miaoli and pingtung counties, taiwan was studied by capillary precipitin method. antisera to alum-precipitated sera of man, bovine, swine, rabbit, horse, dog, cat, mouse, chicken, duck, and pigeon were produced in rabbits and reacted with 758 mosquito blood meals among which reactions to one or more antisera. culex annulus and culex tritaeniorhynchus summorosus showed a great avidity for pig, and culex fuscocephala for bovine. culex pi ... | 1975 | 181218 |
| experimental transmission of japanese encephalitis virus by culex tritaeniorhynchus and c. fuscocephalus. | experimental transmission of japanese encephalitis virus from swine to baby chicks was accomplished using culex tritaeniorhynchus and culex fuscocephalus, two of three mosquito species in taiwan from which the virus has been recovered in nature. whereas neither species had become infective by the twelfth day, one of ten c. fuscocephalus and 11 of 51 c. tritaeniorhynchus were infective by the seventeenth day of extrinsic incubation as verified by viraemia in chicks fed upon by potentially infecti ... | 1975 | 168819 |
| arbovirus infections in sarawak, october 1968--february 1970 tembusu and sindbis virus isolations from mosquitoes. | thirty isolations of tembusu virus and four of sindbis virus were obtained from approximately 280 000 mosquitoes collected between october 1968 and february 1970 in sarawak, particularly from k. tijirak, a land dyak village 19 miles south of kuching. twenty-two isolations of tembusu virus and two of sindbis virus were from culex tritaeniorhynchus; two of tembusu virus and two of sindbis virus came from culex gelidus. tembusu virus was active throughout the year at k. tijirak, the highest infecti ... | 1975 | 235907 |
| japanese encephalitis virus from pigs and mosquitoes in jakarta, indonesia. | japanese encephalitis virus was isolated from 11 pools of culex tritaeniorhynchus and a single pool of c. gelidus mosquitoes at a pig-raising area near jakarta, west java, indonesia, during 1972-74. ten sentinel pigs placed in the area all developed haemagglutination-inhibition antibodies against japanese encephalitis and the virus was isolated from the blood of 3. | 1975 | 7033 |
| development of an attenuated strain for japanese encephalitis live virus vaccine for porcine use. | to develop japanese encephalitis live virus vaccine for the prevention of stillbirth in swine, an attempt was made to produce an attenuated virus. primary bovine kidney cell culture was used to carry out serial passages of a field strain at 30 degrees c for a long time. during these passages cloning was repeated with the character of reproductive capacity at given temperature (rct) and plaque sizes as markers. as a result, an attenuated s- strain was produced successfully. it was rct/37- and rct ... | 1975 | 1121330 |
| growth of japanese encephalitis virus in culex tritaeniorhynchus cell cultures. | ovarian cells from the mosquito culex tritaeniorhynchus established in continuous tissue cultures have been found to support the growth of japanese encephalitis virus with titers reaching as high as 10(7.36) micld50 per 0.03 ml. virus-cell cultures were serially subcultured 60 times over 300 days and the virulence of the virus was determined after each passage. a gradual loss in virus titer was observed, with titers always higher in the medium than in the cells. cytopathogenic effects were not o ... | 1975 | 1238028 |
| genetic studies of two new mutants in linkage group 3 of the mosquito culex tritaeniorhynchus. | 1973 | 4787717 | |
| ecological studies on culex tritaeniorhynchus as a vector of japanese encephalitis. | in the republic of korea, light-trap assessments and collections from cows and pigs after sunset were highly successful in monitoring the seasonal abundance of c. tritaeniorhynchus, the primary vector of japanese encephalitis. the dates and duration of the population peaks at semirural suburbs of seoul and pusan were markedly different from those at a rural rice-growing site. the main breeding sites in these three areas were, respectively, swamps, marshes, and ricefields. the overall adult densi ... | 1973 | 4363396 |
| sterility enhancement in the mosquito. culex tritaeniorhynchus. | 1972 | 5052529 | |
| the genetics of delta, a dominant sex-linked mutant of the mosquito, culex tritaeniorhynchus. | 1972 | 4626393 | |
| a cell line derived from ovarian tissue of culex tritaeniorhynchus summorosus dyar. | 1972 | 5019214 | |
| linkage group-chromosome correlation in culex tritaeniorhynchus. | linkage groups of a culicine mosquito, culex tritaeniorhynchus, have been assigned to their respective chromosomes by genetic and cytologic observations of radiation-induced aberrations. linkage group i is assigned to the smallest chromosome, linkage group ii to the submetacentric chromosome, and linkage group iii to the metacentric chromosome. | 1971 | 4321925 |
| [insecticide tests for resistance on adults of anopheles sinensis and culex tritaeniorhynchus in korea] | during the summer season(july-august) in 1967, the insecticide tests for resistance on adult a. sinensis and c. tritaeniorhynchus were carried out in gobu-myun jeongup-gun, chollapuk-do, where many japanese encephalitis cases occur every year. 1)the mortality by 4.0% ddt in a. sinensis was 88.9% and by 4.0% dieldrin was 84.4%. therefore the lc-50 of ddt for a. sinensis was 1.75%, while lc-50 of dieldrin was 1.1%. 2)the mortality by 4.0% ddt in c. tritaeniorhynchus was 36.7%, and by 4.0% dieldrin ... | 1969 | 12913538 |
| methods of sampling population of the japanese encephalitis vector mosquitoes in korea: a preliminary report. | for the determination/confirmation of the vector species of japanese encephalitis in korea and for the study of their bionomics, a preliminary assessment of different collecting methods of sampling mosquito population was undertaken. man-biting catches, cow-biting catches, pig-baited window-trap hut, light trap, dry ice trap and man-baited double net were employed. the advnntages and disadvantages of these methods are discussed. a pig-baited window-trap hut and cow-biting catches outdoors are co ... | 1969 | 12913537 |
| [taxonomic studies on culex tritaeniorhynchus giles and culex vishnui theobald. 9. re-examination of the upright forked scales covering the vertex of the adult insect]. | 1968 | 5692204 | |
| identification of the host range of culex tritaeniorhynchus mosquitoes on okinawa, ryukyu islands. | 1968 | 5699968 | |
| some observations on the behavior of culex tritaeniorhynchus summorosus, the prinicipal vector of japanese encephalitis in japan. | 1968 | 4306200 | |
| notes on laboratory colonization of culex tritaeniorhynchus summorosus, the principal vector of japanese encephalitis in japan. | 1968 | 4310242 | |
| the genetics of 'golden', a new sex-linked colour mutant of the mosquito culex tritaeniorhynchus giles. | 1968 | 5750649 | |
| comparative studies on the breeding habits of a laboratory adapted variant and wild colonies of culex tritaeniorhynchus summorosus, the principal vector of japanese encephalitis. | 1967 | 4296897 | |
| the mode of development of japanese encephalitis virus in the mosquito culex tritaeniorhynchus summorosus as observed by the fluorescent antibody technique. | 1967 | 4296895 | |
| attractiveness of dyed waters as oviposition sites to culex tritaeniorhynchus. | 1965 | 5841840 | |
| the behavior of murray valley encephalitis virus in culex tritaeniorhynchus giles and culex pipiens quinquefasciatus say. | 1963 | 14044755 |