| khasan virus, a new ungrouped bunyavirus isolated from haemaphysalis longicornis ticks in the primorie region. | strain leiv-776p, possessing no haemagglutinating activity was isolated in 1971 in the primorie region (u.s.s.r.) from haemaphysalis longicornis neumann 1091 tick. complement fixation (cf) tests revealed no antigenic relationship with 24 antigenic groups of arboviruses or 21 ungrouped viruses isolated from ticks. the virus isolate contains rna and is relatively sensitive to ether and sodium deoxycholate; it is pathogenic for suckling mice and two-week-old white mice by the intracerebral route, a ... | 1978 | 27977 |
| ultrastructure of babesia major vermicules from the tick haemaphysalis punctata as demonstrated by negative staining. | the ultrastructure of babesia major vermicules was studied in samples derived from the haemolymph of haemaphysalis punctata adults and negatively stained with phosphotungstic acid. most of the organelles observed were typical of those found in apicomplexan parasites. these were the apical complex with the polar ring and the ribs, micronemes and subpellicular microtubules. the number of ribs was 27 or 28. the outer membrane of the pellicle was composed of a large number of fibrils running along t ... | 1978 | 77093 |
| development of acquired resistance precipitating antibody in rabbits experimentally infested with females of haemaphysalis longicornis (ixodoidea: ixodidae). | the resistance to the ixodid tick, haemaphysalis longicornis (parthenogenetic okayama strain), manifested as a reduction in engorged body weight, developed in rabbits subjected to a series of adult female infestations. a single infestation with females always produced resistance in hosts. this production appeared to depend little on the number of ticks per infestation. unlike the previous papers, this study revealed that there was no reduction in the mean recovery rate of engorged females when t ... | 1978 | 77478 |
| [anomalohimalaya lotozkyi sp. n., a new species of ixodid ticks from the peter the first range (ixodoidea, ixodidae)]. | anomalohimalaya lotozkyi sp. n., the second species of this genus, was found in tadzhikistan, peter i ridge, at the height of 2700 m above the sea level in rocky locality with xerophilous vegetation on alticola argentatus. in june, 1977 there were found larvae and nymphs of the species. after feeding larvae and then nymphs females and males were obtained. all phases of the life cycle differ distinctly from those of the type species an. lama hoog., kais. et mitch., 1970, from himalayas. the diagn ... | 1978 | 151845 |
| isolation of langat virus from haemaphysalis papuana thorell in thailand. | a strain of langat virus (lgt), t-1674, was isolated from a pool of haemaphysalis papuana thorell collected in the forest of khao yai national park in central thailand. the isolated virus was found to have growth and antigenic similarity to the prototype langat strain (tp-21). this is the first report of a natural infection of haemaphysalis ticks with lgt and of the isolation of this arbovirus in thailand. the wide distribution of known vectors of lgt in thailand suggests that the virus may be p ... | 1976 | 180846 |
| ticks of small mammals from the hindu kush (afghanistan). | during the first czechoslovak expedition to the east hindu kush in june-september 1965 a total of 193 hosts belonging to 12 species was examined on the presence of ticks. specimens of the genera ixodes, haemaphysalis, dermacentor and rhipicephalus were found. data and comments are given for the species collected. | 1977 | 342370 |
| blood parasites of sheep in the netherlands. i. anaplasma mesaeterum sp.n. (rickettsiales, anaplasmataceae). | on two occasions an anaplasm was isolated from sheep on the dutch island of ameland. the organism proved to be highly pathogenic for splenectomised sheep; a non-splenectomised animal recovered spontaneously after the packed cell volume had decreased by 40%. treatment with oxytetracycline was effective. its pathogenicity for goats appeared to be low, and the organism was apparently not infective to splenectomised cattle. this anaplasm differs from anaplasma ovis in that less than 30% of the organ ... | 1979 | 419513 |
| growth of haemaphysalis (kaiseriana) longicornis on cattle. | | 1979 | 500279 |
| field study of the relationship between skin-sensitizing antibody production in the cottontail rabbit, sylvilagus floridanus, and infestation by the rabbit tick, haemaphysalis leporispalustris (acri: ixodidae). | the resistance of cottontail rabbits to tick feeding appears correlated with the rabbits' development of skin-sensitizing antibodies. resistance appeared to be greatest in adult rabbits which had been repeatedly infested with ticks. rabbits with little exposure to ticks, usually the young cottontails, showed little or no skin-sensitizing antibody present in their blood and usually had relatively high tick loads when compared with adult rabbits. models used to interpret the data show promise as t ... | 1979 | 512764 |
| development, survival, and oviposition of the rabbit tick, haemaphysalis leporispalustris (packard) (acari: ixodidae), at constant temperatures. | the relationship between development, survival, and oviposition rates, and five constant temperatures is described for the developing and reproductive life stages of the rabbit tick, haemaphysalis leporispalustris (packard). development was most rapid at 29.7 c for egg and larvae, and 35.6 c for nymphs. survival was greatest between 14.7 and 29.7 c, but was reduced at 35.6 c for eggs and larvae. oviposition was optimal between 19.9 and 29.7 c with a maximum mean daily oviposition of 253 eggs/fem ... | 1979 | 512768 |
| haemaphysalis (allophysalis) kopetdaghica: identity and discovery of each feeding stage on the wild goat in northern iran (ixodoidea: ixodidae). | | 1979 | 512770 |
| ixodid ticks of barun glacier region (the nepal himalaya). | during the 3rd czechoslovak mountaineering expedition to the himalaya in the spring 1973 ticks of the family ixodidae were collected from small mammals and additionally from pastured sheep, and humans. the tick material represented the following species: ixodes (p.) ovatus neumann, 1899, ixodes (i.) acutitarsus (karsch, 1880) and haemaphysalis (a.) aponommoides warburton, 1921. ecological and zoogeographical characteristics of the ticks found are given and their potential medical importance is d ... | 1979 | 544390 |
| [haemaphysalis concinna koch, 1844 in italy]. | the authors provide here the data concerning the first italian finding of tick hemaphysalis concinna (ixodidae). two males of this species--which has a large geographic diffusion--were actually caught for the first time in italy, in july 1977. they were found on the ground of the castel porziano estate (rome) at sealevel, in two different grassy places. the authors describe their morphological characters and provide some essential data on the environment of castel porziano. | 1978 | 553272 |
| epidemiology and control of anaplasmosis in australia. | anaplasmosis occurs in those areas of northern and eastern australia infested by the cattle tick boophilus microplus but it has been studied intensively only in queensland. anaplasmosis is predominantly a disease of autumn and winter and of cattle greater than 1 year of age. the complement fixation test has been used in serological surveys of the tick-infested areas of the state. both clinical and subclinical infections occur only in tick-infested areas and they are both more frequent in bos tau ... | 1979 | 553977 |
| [feeding of imago haemaphysalis japonica douglasi nutt. et warb. and haemaphysalis concinna koch under laboratory conditions]. | | 1977 | 562974 |
| the ultrastructure of penetrating stages of babesia major infecting the ovary of haemaphysalis punctata. | the ultrastructure of penetrating stages of babesia major merozoites responsible for causing trans-ovarian infection of the tick haemaphysalis punctata was studied. these merozoites were different from forms of other babesia species previously described in the tick in that they were highly pleomorphic. most of the organelles found in these forms were similar to those found in other stages: however, the apical complex was found to be very active. micronemes were found to be predominant in the cyt ... | 1977 | 563562 |
| the temperature and humidity preferences of haemaphysalis longicornis, ixodes holocyclus and rhipicephalus sanguineus (ixodidae): studies on eggs. | | 1979 | 571858 |
| electronmicroscopic investigations of wolbachia-like microorganisms in haemaphysalis inermis. | | 1977 | 600395 |
| growth of arboviruses in cell cultures derived from the tick haemaphysalis spinigera. | | 1977 | 608719 |
| new minto virus: a new rhabdovirus from ticks in alaska. | three strains of a virus were isolated from haemaphysalis leporis-palustris (packard) ticks removed from snowshoe hares (lepus americanus erxleben) in east central alaska. we suggest that the virus be named new minto for the location in which the ticks were collected. prototype new minto virus is sensitive to the action of sodium deoxycholate and kills suckling mice by the intracerebral but not intraperitoneal route; weaned mice do not die after intracerebral, intraperitoneal, or subcutaneous in ... | 1978 | 638895 |
| isolation of bhanja virus from ticks of the genus haemaphysalis in southeast bulgaria and presence of antibodies in pastured sheep. | bhanja virus was isolated from ticks of the genus haemaphysalis (h. punctata and h. sulcata) collected from sheep pastured in the surroundings of akhtopol in southeast bulgaria, and simultaneously blood sera of 58 sheep were investigated in plaque-reduction neutralization test with b lranja arbovirus. all sera contained antibodies to this virus in titres from 1:32 to 1:4096 (geometrical mean titre 1:494). the district of akhtopol proved to be a natural focus of bhanja virus. | 1978 | 640526 |
| [population density of ixodes persulcatus ticks (ixodidae) in the western sikhote-alin]. | the paper presents data on the population density of active ticks in different landscape zones of west sykhote-alyn as well as the material on the absolute abundance of ticks in four experimental 400 m2 areas. the abundance of active ixodes persulcatus and haemaphysalis japonica on vegetation at the peak of their activity was found to amount to half of all hibernated adult ticks. | 1978 | 643311 |
| attempted transmission of anaplasma marginale by haemaphysalis longicornis. | | 1978 | 655986 |
| transmission of kyasanur forest disease virus by haemaphysalis wellingtoni nuttall and warburton, 1907 (acarina : ixodidae). | | 1978 | 680913 |
| natural infection of the tick dermacentor reticulatus (fabr.) with the microsporidian nosema slovaca weiser et rehácek in slovakia. | a total of 6,199 adult ticks (haemaphysalis intermis, dermacentor reticulatus, d. marginatus and ixodes ricinus) collected in three localities in slovakia were examined for microsporidian infection. the spores of nosema slovaca were found in six d. reticulatus (0.097%). the microsporidian experimentally inoculated into the hemocele of half-engorged females of d. reticulatus caused acute infection and death of the host. the infection can be transmitted also to other tick species from the same reg ... | 1978 | 689565 |
| climbing behavior and host-finding larval rabbit ticks (haemaphysalis leporispalustris). | the rabbit tick (haemaphysalis leporispalustris) is highly host-specific. adults feed almost exclusively on rabbits. immatures feed primarily on rabbits but will attack birds. when larvae leave the daytime resting form of the rabbit, they climb up to a position on vegetation where they can encounter a host. experiments using glass rod models to represent vegetation showed that ticks selected a position which had greatest substrate curvature and was at rabbit body height. this strato-orientation ... | 1978 | 722459 |
| haemaphysalis (rhipistoma) eupleres (ixodoidea: ixodidae), a parasite of the madagascar falanouc (mongoose): new data and male identity. | haemaphysalis (rhipistoma) eupleres hoogstraal, kohls and trapido 1965, was described and partially illustrated from a single damaged female from the falanouc, or small-toothed mongoose, eupleres sp., from an unstated locality in madagascar. data are here presented for two collections (9 males, 17 females) from two localities in tamatave province, one from e. goudotii doyère, the other from an unstated host. the male is described and illustrated; a complete female is illustrated. | 1977 | 758015 |
| theileria mutans: experimental transmission by haemaphysalis punctata. | t. mutans (essex), originally isolated from a farm in the county of essex in south-east england by allowing field-collected h. punctata tickes to feed on a splenectomized calf, was syringe-passaged once between calves and then resecured in a laboratory-reared strain of h. punctata. from subsequent studies it was found that only transstadial transmission of the parasite occurred. thus, only the larval and the nymphal stages of the ticks were capable of acquiring the infection and subsequently nym ... | 1975 | 810930 |
| rickettsiae belonging to the spotted fever group from ticks in the tribec mountains. | rickettsiae of the spotted (sf) group were found in a selected locality of the tribec mountains in southern slovakia in 1974. the rickettsiae were found in 10.8% of females and 6.1% of males of haemaphysalis inermis and 7.3% of females and 4.8% of males of ixodes ricinus. no significant differences in the incidence were observed during the year. coxiella burneti was found in 1 male and 4 females of h. inermis and 1 male of i. ricinus in ad adjacent locality. antibodies against rickettsiae of the ... | 1976 | 820614 |
| possibilities of persistence in new biotopes of ticks imported by birds. | survival and development of 6 tick species (hyalomma anatolicum, rhipicephalus sanguineus, haemaphysalis punctata, dermacentor marginatus, d. reticulatus and ixodes ricinus) were studied in 3 groups differing in the range of distribution with respect to the place of importation, as a model for the knowledge of their possible inclusion in the new local biocenosis during transportation by natural hosts. | 1977 | 852771 |
| babesia major in britain: infectivity for cattle of cryopreserved parasites derived from haemaphysalis punctata nymphs. | babesia major-infected haemaphysalis punctata nymphs, prefed for four days on rabbits, were ground in a modified eagle's minimum essential medium containing n-2 hydroxyethylpiperazine-n1-ethane-sulphonic acid (hepes) buffer using sterile sand or ground glass as triturating agents. the resultant supernatant fluids were shown to be infective for splenectomised calves. when attempts were made to cryopreserve the fluids using either dimethyl sulphoxide or glycerol to a final concentration of 10 per ... | 1977 | 860093 |
| life history of haemaphysalis wellingtoni nuttall and warburton, 1907 (acarina : ixodidae). | | 1977 | 863477 |
| haemaphysalis (allophysalis) danieli, sp. n. (ixodoidea: ixodidae), female and tentatively associated immature stages from high mountains of northern pakistan and afghanistan. | haemaphysalis (allophysalis) danieli sp. n. is described from a female taken from alpine vegetation in swat, pakistan. fifty-one nymphal and larval ticks tentatively associated with this taxon are from hamsters, field mice, voles, and marmots (rodentia), cricetulus migratorius, apodemus flavicollis, alticola roylei, and marmota caudata, and from pikas (lagomorpha), ochotona roylei, in gilgit and hazara districts of pakistan and in badakhashan province of afghanistan. collecting localities are in ... | 1977 | 864574 |
| [diagnosis of the sexually immature phases of the tick, haemaphysalis flava neum (ixodidae)]. | | 1977 | 896281 |
| a differential diagnostic criterion for babesia major and babesia bigemina vermicules from tick haemolymph. | babesia major mature and immature vermicules in the haemolymph of haemaphysalis punctata were measured and found to be significantly larger than vermicules of babesia bigemina. mature b. major vermicules had a mean length of 15.53 micrometer and mature b. bigemina vermicules had a mean length of 11.79 micrometer. this difference provides a new criterion for the differentiation of the two species. | 1977 | 906629 |
| isolation of bhanja virus from ticks in yugoslavia. | two strains of bhanja (bha) virus, an ungrouped arbovirus, were isolated from haemaphysalis punctata ticks collected from sheep on the island of brac in the yugoslavian adriatic. serologic testing gave evidence of the endemicity of bha virus on the island, and antibody prevalence rates were high for both man (35.8%--ranging locally to 61.3%) and sheep (100%). no antibody was found in 82 small mammals tested. evidence of a natural cycle involving ticks and sheep, the potential significance of thi ... | 1977 | 907037 |
| experimental transmission of babesia major by haemaphysalis punctata. | using a newly isolated strain of babesia major and a clean strain of laboratory reared haemaphysalis punctata it was shown that adult female ticks could be alimentarily infected by feeding on infected calves but that larvae and nymphae could not. all stages were able to transmit the parasite. two syringe passages of b major resulted in a complete loss of infectivity to ticks. | 1977 | 928992 |
| differential variation of parthenogenetic and bisexual haemaphysalis longicornis (acari: ixodidae). | morphological characters are measured from each tick specimen from samples of 10 "populations" of haemaphysalis longicornis. the 10 populations consist of 6 diploid bisexual and 4 triploid parthenogenetic populations from australia, japan, and korea. statistical analyses (univariate and multivariate) of differential morphological variation are made among sex, method of reproduction, and chromosome ploidy level in attempts to determine the effects of these parameters on overall variation. in gene ... | 1976 | 932923 |
| ultrastructure of babesia major in the tick haemaphysalis punctata. | haemaphysalis punctata ticks were infected with babesia major by allowing them to feed on an infected splenectomised calf. heavily infected ticks were dissected and the guts and the ovaries were processed to study the ultrastructure of b major in these organs. the morphology of the parasites in the gut and the ovary was identical. it was shown that the parasite contained a reduced form of an apical complex consisting of characteristic organelles such as the polar ring, rhoptries, micronemes and ... | 1976 | 951514 |
| accumulating process and concentration ratios of ingested blood meals in larvae and nymphs of ten species of ticks. | the accumulating process and concentration ratios of ingested blood meals in the larvae and nymphs of amblyomma testudinarium, haemaphysalis campanulata, h. concinna, h. formosensis, h. hystricis, h. kitaokai, the bisexual and parthenogenetic strains of h. longicornis, h. megaspinosa, and ixodes persulcatus on rabbits and argas japonicus on chickens were comparatively investigated. the larvae and nymphs of the ixodid ticks examined and the larvae of a. japonicus concentrated the ingested blood m ... | 1976 | 980120 |
| comparative observations on some bionomics of japanese ixodid ticks under laboratory cultural conditions. | seventeen species of japanese ixodid ticks of the genera amblyomma, boophilus, haemaphysalis, ixodes, and rhipicephalus were reared in the laboratory under almost the same cultural conditions. their major biological characters, such as feeding, molting, oviposition, and hatching, were summarized in tables. there were some differences in these bionomics among the species. the general characteristics common to all the ticks, except amblyomma testudinarium, were as follows. the feeding period in im ... | 1976 | 980121 |
| [occurrence of the tick haemaphysalis punctata (can. et fanz., 1877) and of babesia major in cattle in north germany]. | | 1976 | 1008781 |
| [new faunal and biological observations on ticks in abruzzo]. | ticks collected during the years 1975-76 in abruzzo (prov. l'aquila and chieti) italy are reported. the following species have been identified: ixodes canisuga, ixodes frontalis, ixodes hexagonus, ixodes ricinus, dermacentor marginatus, haemaphysalis sulcata, rhipicephalus bursa, rhipicephalus sanguineus, hyalomma marginatum. new hosts are: felis catus for ixodes canisuga; scolopax rusticola, motacilla flava, corvus cornix for ixodes frontalis; sciurus vulgaris for haemaphysalis punctata; garrul ... | 1976 | 1032325 |
| a comparative toxicological and biochemical study of the effects of coumaphos on larvae of haemaphysalis longicornis and boophilus microplus. | | 1976 | 1052884 |
| study of rickettsioses in slovakia. i. coxiella burneti and rickettsiae of the spotted fever (sf) group in ticks and serological surveys in animals and humans in certain selected localities in the lucenec and v. krtís districts. | a study of the natural focus character of q fever and the rickettsiosis caused by organisms of the sf group carried out in 1971-1973 in 7 selected villages in the lucenec district and in a few control villages in the v. krtis district, produced the following results: among a total number of 2,200 ticks belonging to the species dermacentor marginatus, ixodes ricinus and haemaphysalis punctata and tested for the presence of rickettsial organisms by the haemocyte test, c. burneti was detected in 8 ... | 1975 | 1092754 |
| feeding of boophilus microplus larvae on a partially defined medium through thin slices of cattle skin. | larvae of the cattle tick boophilus microplus will attach to thin (0-3--0-5 mm) slices of cattle skin and engorge on a partially defined medium at 35 degrees c. forty-seven to 83 per cent of the larvae had engorged by 8 days, and 51--71 per cent of these moulted to nymphs. tissue culture medium alone allowed little growth unless supplemented with dialysed, freeze dried bovine serum (7 per cent, w/v). this medium could be further difined by substituting purified bovine serum albumin (cohn frac ... | 1975 | 1128926 |
| parasites of the black-tailed jackrabbit in north central colorado. | forty-four black-tailed jackrabbits, lepus californicus melanotis mearns, 1890, were collected near denver from august, 1972, through july, 1973, and amined for parasites. recovered parasites and their infection rates were: eimeria sp. 100%, cittotaenia sp.27%, coenuri of multiceps sp. 57%, cediopsylla inaequalis 14%, hoplopsyllus affinis 9%, haemodipsus setoni 2%, dermacentor andersoni 14%, and haemaphysalis leporis-palustris 25%. | 1975 | 1142561 |
| ackertia globulosa sp. n. (nematoda: filarioidea) from rodents in kenya. | ackertia globulosa sp. n. (nematoda: filarioidea) is described from the pulmonary arteries of the striped mouse, lemniscomys striatus striatus (l.), in kenya. distinguishing features are the small size of the adults; the short left spicule and arrangement of the caudal papillae (3 pairs preanal, 4 pairs postanal) of the male; small projecting lobes on the tail of the females; and 10 to 12 refractile globules in the microfilarial sheath. the microfilariae are found in the skin, mostly of the ear. ... | 1975 | 1165543 |
| studies on the ecology of haemaphysalis silacea robinson 1912 (acarina: ixodidae). | haemaphysalis silacea robinson is known to be established only in the eastern cape province of south africa, in localized areas of fish river bush in the river valleys and in the coastal bush complex. in the kowie river valley, it was shown that the distribution of larvae is limited by microclimatic conditions. the humid leaf litter zone in the dense vegetation on the river banks and along minor tributaries is the focus of the larval population. nymphs are most numerous in drier microhabitats on ... | 1975 | 1165557 |
| transstadial transmission of theileria annulata through common ixodid ticks infesting indian cattle. | transstadial transmission of theileria annulata with hyalomma anatolicum anatolicum, h. dromedarii and h. marginatum isaaci, and haemaphysalis bispinosa, rhipicephalus haemaphysaloides haemaphysaloides and boophilus microplus was determined. it was found that the infection was successfully transmitted by h. a. anatolicum from larva to nymph and nymph to adult in all attempts. when larvae were fed on an infected calf the succeeding adults transmitted the infection when the intervening nymphs fed ... | 1975 | 1178216 |
| [ability of female ixodid ticks to recover from poisoning with ddt in the process of feeding]. | ability of hungary females of ixodes persulcatus, haemaphysalis concinna and dermacentor silvarum to feed and lay eggs after having been exposed to different ddt doses (ld100) has been studied. the ticks heavily injuried but still mobile can feed on the host and lay eggs, i.e. to overcome the poisoning. clutches laid by these females do not differ from control ones. loss of mobility deprives the ticks of the ability to fed. an increase in ddt dose (ld100 x 100, experiment with i. persulcatus) do ... | 1975 | 1187171 |
| transmission of kyasanur forest disease virus by haemaphysalis kyasanurensis trapido, hoogstraal and rajagopalan, 1964 (acarina: ixodidae). | | 1975 | 1213783 |
| arsenic resistance in species of multi-host ticks in the republic of south africa and swaziland. | a survey was made in the republic of south africa and swaziland to determine the incidence of arsenic resistance in multi-host ixodid ticks. arsenic resistant strains were found in the following species:- rihipicephalus appendiculatus, rhipicephalus evertsi, rhipicephalus capensis, amblyomma hebraeum and a species of hyalomma, tentatively identified as hyalomma rufipes. strains of haemaphysalis leachi, haemaphysalis silacea and ixodes pilosus were also tested. | 1975 | 1223285 |
| haemaphysalis juxtakochi, ixodes pararicinus (ixodidae) and otobius megnini (argasidae) in relation to the phytogeography of argentina. | the phytogeographical distributions of haemaphysalis juxtakochi, ixodes pararicinus and otobius megnini in argentina are described from material collected mainly from 1978 to the present. h. juxtakochi was found in the northwestern area of the amazonian domain and in the chaco, espinal and pampean provinces of the chaco domain. it was detected on mazama spp., tapirus terrestris, dog, cattle and on the vegetation. most findings of i. pararicinus were from mountain rangeland, where it was found on ... | 1992 | 1290380 |
| parasites of domestic and wild animals in south africa. xxx. ectoparasites of kudus in the eastern transvaal lowveld and the eastern cape province. | sets of four kudus were shot and examined for arthropod parasites at approximately monthly intervals from april 1981 to march 1983 in the southern part of the kruger national park, eastern transvaal lowveld. these animals harboured 10 ixodid tick species of which boophilus decoloratus followed by amblyomma hebraeum were the most abundant. the seasonal abundances of these ticks and of amblyomma marmoreum, rhipicephalus appendiculatus, rhipicephalus evertsi evertsi and rhipicephalus zambeziensis w ... | 1992 | 1297956 |
| [differences in the distant transmission of the tick-borne encephalitis virus by ixodid ticks of 2 subfamilies]. | simultaneous but separate feeding of ticks on nonviremic animal (guinea pig) has shown that amblyomminae ticks are practically unable to transmit distantly tick-borne encephalitis virus (tbev) to the specimens of their own subfamily and to ixodinae as well. ixodes persulcatus and i. ricinus displayed their ability as donors and recipients of tbev (adults and nymphs) not only for their own subfamily representatives but also as donors for recipients of amblyomminae subfamily (nymphs and adults of ... | 1992 | 1299805 |
| [survey on tick vectors of lyme disease spirochetes in china]. | since 1987 we have been studying on lyme disease in china. there were 71 isolates of borrelia burgdorferi recovered from six species of ticks including ixodes persulcatus, ixodes granulatus, ixodes rangtangensis, haemaphysalis concinna. haemaphysalis bispinosa and haemaphysalis longicornis, and 55 isolates from ixodes persulcatus collected from heilongjiang, jilin, liaoning, nei-monggol, hebei and xinjiang region (province). ixodes persulcarus is the dominant species accounted for more than 80% ... | 1992 | 1300244 |
| observations of babesia gibsoni in midgut epithelial cells of the tick, haemaphysalis longicornis. | | 1992 | 1308256 |
| [haemaphysalis (alloceraea) inermis birula, 1895, in a wooded area of latium]. | haemaphysalis (alloceraea) inermis birula specimens have been collected in a woody land of manziana in the province of rome. this is the first report in latium region and suggests the presence of autochthonous populations of the species in central italy since no exotic fauna has been introduced in the past in the area studied. the role of h. inermis on the transmission of pathogens for humans and animals is discussed. | 1992 | 1339963 |
| identification of spotted fever group rickettsiae using polymerase chain reaction and restriction-endonuclease length polymorphism analysis. | in order to facilitate the isolation and identification of spotted fever group (sfg) rickettsiae from their tick vectors, we used the centrifugation shell vial technique or traditional isolation procedures and genotypic identification using the restriction fragment length polymorphism analysis of polymerase chain amplified fragments. the presence of rickettsia conorii both in rhipicephalus sanguineus ticks collected in southern france, and in rhipicephalus simus and haemaphysalis leachi from zim ... | 1992 | 1350164 |
| [the tick fauna of eastern germany]. | the occurrence of several tick species in selected areas of eastern germany is described. from may 1987 till december 1989 8,472 ticks from 430 places were examined. ixodidae of the genus ixodes, dermacentor and haemaphysalis as well as argasidae of the genus argas were identified. the most common species was ixodes ricinus. furthermore, an endemic area of dermacentor reticulatus was detected in the düben-dahlen and annaburg health. two other species of ticks, which were found frequently and som ... | 1992 | 1416225 |
| [vectors of japanese spotted fever]. | in the southeast coast of shikoku, most of the japanese spotted fever (jsf) patients were found to be infected with the rickettsial pathogen through bamboo plantation, and also the eschar was frequently noticed in skin inspection, so that it was clinically speculated to be caused by ticks. according to out field research, the tick fauna was very rich throughout that area, and it was permissible enough to determine ticks as the vectors, based on arising of anti-sf group rickettsiae (sfgr) antibod ... | 1992 | 1431380 |
| tick infection rates with borrelia: ixodes ricinus versus haemaphysalis concinna and dermacentor reticulatus in two locations in eastern germany. | unfed nymphal ixodes ricinus, haemaphysalis concinna, and adult dermacentor reticulatus were collected in two locations of saxony in july and september 1991 by flagging. in july, the abundance of nymphal i. ricinus was about 2-3 times higher than that of nymphal h. concinna, a time of the year when nymphs of both species are reported to have a seasonal peak of activity. no d. reticulatus were flagged concurrently. in september, host-seeking activity of nymphal i. ricinus was again quite high as ... | 1992 | 1463902 |
| parasites of cottontail rabbits of southern illinois. | fifteen species of parasites including haemaphysalis leporispalustris, ixodes dentatus, amblyomma americanum, cediopsylla simplex, odontopsyllus multispinosus, cuterebra sp., obeliscoides cuniculi, trichostrongylus calcaratus, trichostrongylus affinis, longistriata noviberiae, dermatoxys veligera, trichuris sp., mosgovoyia sp., taenia pisiformis, and hasstilesia tricolor as well as coccidia oocysts were collected from 96 cottontail rabbits (sylvilagus floridanus) confined to a pen in southern il ... | 1992 | 1491303 |
| prevalence of lyme borreliosis spirochetes in ixodid ticks of japan, with special reference to a new potential vector, ixodes ovatus (acari: ixodidae). | to determine the vectors of lyme borreliosis in japan, the ixodid ticks taken in hokkaido, fukushima, nagano, ehime, and kochi prefectures were examined individually for spirochetal infections by culturing their midgut tissues in bsk medium. the cultivable spirochetes identified as borrelia burgdorferi were detected in ixodes persulcatus schulze adults (15.5% of 634), nymph (6.7% of 15) and ixodes ovatus neumann adult (9.6% of 188) from hokkaido, i. ovatus adults (25.5% of 47) from fukushima, an ... | 1992 | 1495032 |
| tick sweep: modification of the tick drag-flag method for sampling nymphs of the deer tick (acari: ixodidae). | we describe a version of the standard tick drag-flag modified for use in close-growing and tangled vegetation, as well as under ornamental shrubbery and fallen branches. two major features of the sweep are: (1) it allows the user to remain upright with the flag parallel to the ground, thus sampling effectively beneath low and fallen branches and around shrubs, as well as capturing host-seeking ticks in advance of the operator; and (2) the use of a flannel rubberized-laminate fabric (crib sheet) ... | 1992 | 1495058 |
| ectoparasites of the blackbuck antelope (antilope cervicapra). | fifty-two free-ranging blackbuck antelope (antilope cervicapra) from texas were examined for ectoparasites. two species of sucking lice (anoplura), one species of chewing louse (mallophaga), one species of louse fly (diptera), and three species of ticks (acari) were found. this is the first report of the anoplurans linognathus cervicaprae and l. pithodes from the western hemisphere. the southern deer ked (lipoptena mazamae), the winter tick (dermacentor albipictus), and the rabbit tick (haemaphy ... | 1992 | 1512888 |
| toxic effect of endocytobionts from dermacentor reticulatus ticks in three tick species after in vivo application. | the endocytobionts from ovaries of partially engorged female dermacentor reticulatus ticks, inoculated introcoelomally into females of three tick species, d. reticulatus, ixodes ricinus and haemaphysalis inermis, caused considerable morphological alterations in the examined cells and tissues of the synganglion, fat body, tracheal complex and ovary of these recipients. | 1992 | 1638925 |
| development, survival, fecundity and behaviour of haemaphysalis (kaiseriana) longicornis (ixodidae) at two locations in southeast queensland. | the free-living stages of the tick haemaphysalis (kaiseriana) longicornis were studied at mt tamborine (526 m altitude) and amberley (25 m altitude) in southeast queensland between 1971 and 1980. data are presented on the number of eggs and larvae produced, the moulting success of engorged larvae and nymphs and the survival and behaviour of unfed larvae, nymphs and adult females. temperature, moisture, daylength, grass length and age of unfed ticks were investigated as sources of variation in de ... | 1991 | 1757193 |
| ectoparasites of commensal rodents in sulawesi utara, indonesia, with notes on species of medical importance. | ectoparasite records are presented for four species of commensal murid rodents (rattus rattus palelae miller & hollister, r. argentiventer (robinson & kloss), r. exulans (peale) and mus musculus castaneus waterhouse) in sulawesi utara, with particular reference to the potential for these arthropods to bite and transmit pathogens to humans. the flea, xenopsylla cheopis (rothschild), was most common on r.r. palelae and is capable of transmitting plague and other pathogens to humans although no cur ... | 1991 | 1768888 |
| ixodid ticks and lice infesting red duikers and bushpigs in north-eastern natal. | eighteen red duikers, cephalophus natalensis, from the charters creek nature reserve and 2 from fanies island nature reserve were processed for arthropod parasite recovery. they harboured 8 species of ixodid ticks and 2 lice species. all were infested with haemaphysalis parmata and the nymphs of rhipicephalus muehlensi. two bushpigs, potamochoerus porcus, from the ndumu nature reserve, 5 from the eastern shores nature reserve and 1 from cape vidal were examined for ectoparasites. they were infes ... | 1991 | 1780129 |
| development of babesia ovata in the ovary and eggs of the tick, haemaphysalis longicornis. | the ovary and eggs of adult tick haemaphysalis longicornis (h. longicornis) infected with babesia ovata (b. ovata), were examined at regular intervals of time. as a result kinetes could be detected in the ovary for the first time 6 days after engorgement. the kinetics could be classified into three types on the basis of their morphological characteristics. on the 2nd day after oviposition, round-formed protozoa were found in the ooplasm of the egg. in 5 days after oviposition, these round-formed ... | 1991 | 1811111 |
| [seasonal dynamics of tick infestations in cattle (ixodoidea) in cattle sold in the area of yaoundé, cameroon]. | among the tick species identified in cameroon, eight were found in cattle in yaoundé: amblyomma variegatum, boophilus annulatus, b. decoloratus, haemaphysalis aciculifer, hyalomma nitidum, rhipicephalus longus, rh. lunulatus, rh. sulcatus. three species, hm. aciculifer, h. nitidum and rh. lunulatus, were identified for the first time in yaoundé. rhipicephalus and hyalomma were abundant during the rainy season. boophilus was abundant throughout the year, with a maximum concentration at the end of ... | 1991 | 1824137 |
| development of babesia gibsoni in the gut epithelium of the tick, haemaphysalis longicornis. | | 1991 | 1830766 |
| development of babesia gibsoni in the hemolymph of the vector tick, haemaphysalis longicornis. | | 1991 | 1832036 |
| a review of the ixodid ticks (acari, ixodidae) occurring in southern africa. | eighty-three species of ixodid ticks, as well as several entities that have yet to be described, occur in the republic of south africa plus the 4 independent states lying within its borders (bophuthatswana, venda, transkei and ciskei) and in namibia, botswana, lesotho and swaziland. they belong to the following genera: amblyomma (8 spp.); aponomma (3 spp.); boophilus (2 spp.); cosmiomma (1 sp.); dermacentor (1 sp.); haemaphysalis (10 spp.); hyalomma (2 spp., one of them with 2 subspp.); ixodes ( ... | 1991 | 1881661 |
| extensive examination of different tick species for infestation with coxiella burnetii in slovakia. | between 1987-1989 almost 7000 adult ixodes ricinus, dermacentor reticulatus, dermacentor marginatus, haemaphysalis concinna, haemaphysalis punctata and haemaphysalis inermis ticks collected in all 38 districts of slovakia were screened for the presence of coxiella burnettii. the proportion of ticks containing c. burnetii as indicated by the haemocyte test was less than 3%. attempts to recover c. burnetii by inoculation of yolk sacs of embryonated hen eggs from pools of 1-6 specimens of haemocyte ... | 1991 | 1884784 |
| tick-bite fever in zimbabwe. survey of antibodies to rickettsia conorii in man and dogs, and of rickettsia-like organisms in dog ticks. | as part of a study of tick-bite fever in zimbabwe, the prevalence of antibodies to rickettsia conorii in dogs and humans was examined. blood samples were obtained from 184 dogs in different parts of the country and tested by indirect immunofluorescence. in all, 150 (82%) were positive at a titre of 1/40 or higher. dogs from the south and east of the country showed very high seroprevalence compared with dogs from the main urban centre, harare. human serum was obtained from blood donors, from peop ... | 1991 | 1887350 |
| parasites of domestic and wild animals in south africa. xxv. ixodid ticks on sheep in the north-eastern orange free state and in the eastern cape province. | the tick burdens of 115 merino sheep, slaughtered over a period of 15 consecutive months on a farm in the north-eastern orange free state, were determined. a total of 7 ixodid and 1 argasid tick species were recovered and the seasonal abundances of boophilus decoloratus, hyalomma marginatum rufipes, margaropus winthemi and rhipicephalus evertsi evertsi were determined. one hundred and forty-nine merino sheep were slaughtered over periods varying from 10 to 25 months on 3 farms in eastern provinc ... | 1991 | 1923373 |
| parasites of domestic and wild animals in south africa. xxvii. ticks on helmeted guineafowls in the eastern cape province and eastern transvaal lowveld. | seventy-six helmeted guineafowls (numida meleagris) were shot in the andries vosloo kudu reserve and on an adjacent farm in the eastern cape province during the period may 1985 to january 1987 and their tick burdens determined. a total of 10 ixodid tick species were recovered, of which amblyomma hebraeum, amblyomma marmoreum and haemaphysalis silacea were the most abundant. the seasonal abundances of these 3 species and of hyalomma marginatum rufipes were ascertained. a marked difference between ... | 1991 | 1923375 |
| borrelia burgdorferi in ticks (acari: ixodidae) from coastal virginia. | ixodid ticks removed from hosts and from vegetation during march-november 1987 at sites in coastal virginia and north carolina were examined for borrelia burgdorferi. b. burgdorferi was evident in nine (22%) ixodes cookei packard removed from rice rats (oryzomys palustris), a white-footed mouse (peromyscus leucopus), and raccoons (procyon lotor); four (6%) amblyomma americanum (l.) removed from raccoons; and two (3%) dermacentor variabilis (say) removed from a raccoon and a rice rat. b. burgdorf ... | 1991 | 1941936 |
| longitudinal study of natural foci of central european encephalitis virus in west slovakia. | a total of 2922 small terrestrial mammals of 12 species were collected in six localities of west slovakia between 1981 and 1986. when examined for the prevalence of neutralizing antibodies (na) to central european encephalitis (cee) virus we found that 14.6% had antibody. nearly all (97%) of the 426 animals with antibody were clethrionomys glareolus, the most abundant species (52.6% of mammals collected, 15.1% of those with antibody). apodemus flavicollis (22.5% of mammals collected, 18.1% of th ... | 1990 | 1983180 |
| ixodid and argasid ticks. keys to their identification. | ticks of the ixodidae family are important ectoparasites of humans and animals. of the 80 or so species found in the united states, about 20 are of veterinary importance. ticks are second only to mosquitoes as carriers of human pathogens. the ixodid (or hard) ticks are the most common and are represented by the genera ixodes, haemaphysalis, boophilus, rhipicephalus, amblyomma, and dermacentor. accurate identification of the species of ixodid ticks within an area is a prerequisite to control and ... | 1991 | 2014622 |
| exotic ectoparasites of ostriches recently imported into the united states. | eleven species of ectoparasitic arthropods were collected and identified from ostriches (struthio camelus) recently imported into the united states from africa and europe. four of these species are reported from ostriches for the first time. the parasites included adult hippoboscid flies (struthiobosca struthionis) and 10 species of adult ixodid ticks (amblyomma gemma, a. lepidum, a. variegatum, haemaphysalis punctata, hyalomma albiparmatum, h. luscitanicum, h. marginatum rufipes, h. truncatum, ... | 1991 | 2023323 |
| ultrastructural changes of the midgut epithelial cells in feeding and moulting nymphs of the tick haemaphysalis longicornis. | the midgut epithelial cells in nymphs fed on laboratory rabbits were examined during feeding and after detachment. the midgut epithelium at the unfed stage consisted of digestive cells of lower activity, containing such nutritive substances as protein, lipid and glycogen. as feeding proceeded, the cells became active in intracellular digestion. at the middle of the feeding stage, the spent digestive cells derived from the active digestive cells began to be replaced by the new digestive cells of ... | 1991 | 2040567 |
| some effects of tick infestations on juvenile northern brown bandicoot (isoodon macrourus). | the effect of tick infestations on body weight and various blood parameters was monitored in juvenile northern brown bandicoots (isoodon macrourus) after release into tick-infested or tick-free enclosures. three species of ticks were observed in the enclosures, haemaphysalis humerosa, ixodes tasmani and ixodes holocyclus. bandicoots released into tick-infested enclosures showed a reduced growth rate (1.8 versus 2.5 g/day increase in body weight), a reduced haematocrit value (27.4 versus 40.0%) a ... | 1991 | 2067048 |
| infection rates of theileria sergenti in haemaphysalis longicornis ticks collected from the field in japan. | for a period of one year haemaphysalis longicornis ticks were collected in a pasture from vegetation by dragging flannel cloth and from soil samples at monthly intervals. nymphal ticks were assessed for theileria infection. salivary glands were stained with methylgreen-pyronin and examined for parasite masses. nymphal h. longicornis infected with theileria sergenti were found in all samples during 12 months including the winter. after shortening the prefed period on rabbits to 24 hours, the para ... | 1990 | 2107351 |
| survey of ticks (acarina: ixodidae) for crimean haemorrhagic fever virus activity in jammu & kashmir state, india. | a survey of ixodid ticks was carried on in 1977 to determine the crimean haemorrhagic fever (chf) virus activity in jammu & kashmir state, india. in all, 412 immatures and 3258 adults belonging to 7 genera and 16 species of ticks were collected as ectoparasites of small and large mammals. these included one species each of the genera boophilus, dermacentor and nosomma, 2 species of rhipicephalus, 3 species of ixodes and 4 species each of haemaphysalis and hyalomma. haem. bispinosa was the predom ... | 1990 | 2111801 |
| maturation of theileria sergenti in salivary glands of haemaphysalis longicornis induced by temperature stimulation. | the parthenogenetic haemaphysalis longicornis larvae engorged on cattle naturally infected with theileria sergenti were reared at 24 degrees c. the resultant nymphal ticks were incubated at 37 degrees c to clear the effect of incubation on the development and maturation of sporozoites. the sporozoites in the salivary glands of the nymphal ticks exposed to 37 degrees c for 16 days were observed by the methyl green pyronin staining method. the ticks exposed to 37 degrees c were ground up in a mort ... | 1990 | 2117090 |
| borrelia burgdorferi in ticks of the canton tessin (switzerland). | in the northern alps it is hard to find an ixodes ricinus population which does not harbour borrelia burgdorferi. the infection rates range from 5 to 34% for adults and nymphs to 3.1% for larvae. this study shows that the infection rates on the southern side of the alps are similar, at 25% for adults, 36.2% for nymphs and 3.2% for larvae. with respect to tick species other than i. ricinus, we did not succeed in finding any spirochetes in dermacentor marginatus, haemaphysalis punctata, ixodes hex ... | 1990 | 2132440 |
| francisella tularensis from ixodid ticks in czechoslovakia. | a total of 26,478 ixodid ticks (935 pools) were examined by intracerebral inoculation of suckling mice. six species of ticks were tested: ixodes ricinus (23,470 individuals), i. trianguliceps (12), haemaphysalis punctata (831), h. concinna (39), dermacentor reticulatus (69) and d. marginatus (2,057). the ticks were collected largely by flagging vegetation, a substantial minority (4%) from animals. three strains of francisella tularensis were isolated, one each from i. ricinus (males, district br ... | 1990 | 2227710 |
| interaction of the tick (haemaphysalis leporispalustris) with a cyclic snowshoe hare (lepus americanus) population. | prevalence and intensity of the tick, haemaphysalis leporispalustris, were monitored during 1963 to 1976 in a cyclic snowshoe hare (lepus americanus) population near rochester, alberta, canada. prevalence was near zero from december through march, and near 100% among adult hares from may through september. prevalence among juvenile hares approached 100% by age 2 mo. intensity peaked for both adults and juveniles during may-june and again in august. mean intensities were significantly higher amon ... | 1990 | 2250317 |
| [the taxonomic aspects of the transmission of the causative agent of lyme disease]. | according to world literature data 17 species of ixodid ticks have been studied for natural infection with the lyme disease agent. analysis of the data on the level of the infection, transovarial and transphase transmission has shown that main biological vectors of borrelia burgdorferi are the species of the subgenus ixodes s. str. - i. ricinus, i. persulcatus (eurasia), i. dammini, i. pacificus (north america). potential vectors are i. scapularis, i. dentatus, amblyomma americanum, dermacentor ... | 1990 | 2259524 |
| [ticks of the ixodidae family as reservoir of arboviruses in the republic of guinea. ii. arboviruses]. | from 1978 to 1985, 96,167 ixodidae family were collected, from which 79 strains of the following arboviruses were isolated, i.e. 4 bhanja strains, 9 chf-congo, 20 dugbe, 24 jos (viruses ecologically related to ticks), 10 abadina, 7 bluetongue, 1 bunyamwera, 1 chikungunya, (related to ticks for the first time), 1 kindia and 2 forecariah (new viruses). the main sources for arbovirus isolation were ticks of the amblyomma variegatum genus (78.5%) followed by ticks of the boophilus (12.6%), rhipiceph ... | 1990 | 2263738 |
| laboratory observations of haemaphysalis longicornis neumann after a human bite. | a case of a tick bite with haemaphysalis longicornis neumann is reported. the tick was found on the left lower abdomen of a 62-year-old female. the tick bite occurred in fuchu city, a suburb of tokyo. this paper presents laboratory observations of the process of haemaphysalis longicornis neumann laying eggs and becoming larvae after biting a human. the results of our observations include the size of female adult (length: 7.5 mm, width: 5.2 mm, weight: 96 mg) after blood sucking, preoviposition p ... | 1990 | 2273164 |
| helminth and arthropod parasites of angora goats on irrigated kikuyu grass pastures in the eastern cape province. | angora goat kids and yearlings grazing irrigated kikuyu (pennisetum clandestinum) grass pastures in the eastern cape province, became heavily infected with teladorsagia circumcincta and trichostrongylus rugatus, leading to high mortality in both age groups. peak burdens of the former were recorded during march and may, and of the latter during may and june. larger numbers of the cestode moniezia expanza, occurred in the kids than in the yearlings. despite the stress of high helminth burdens, no ... | 1990 | 2286996 |
| necessity of ige antibodies and mast cells for manifestation of resistance against larval haemaphysalis longicornis ticks in mice. | genetically mast cell-deficient wbb6f1-w/wv mice showed an apparent defect in manifestation of the resistance against larval haemaphysalis longicornis ticks, but their serum ige levels increased more than 100-fold after the second tick infestation. immune sera obtained from the wbb6f1-w/wv mice were adoptively transferred to the other wbb6f1-w/wv mice which had received intracutaneous injections of wbb6f1-+/+ mouse-derived cultured mast cells. because the resistance against ticks was detectable ... | 1990 | 2295794 |
| parasites from the asiatic black bear (ursus thibetanus) on kyushu island, japan. | two dirofilaria ursi, six trichodectes pinguis and numerous haemaphysalis megaspinosa were obtained from an asiatic black bear (ursus thibetanus) shot in kyushu, japan. the presence of two parasites specific to black bears may indicate the existence of a wild population, although the bears are regarded to be extinct on kyushu island. | 1990 | 2304196 |
| taxonomic relationships of the subgenus rhipistoma (acari: ixodidae: haemaphysalis). | the possible evolution of the haemaphysalid subgenus rhipistoma (koch) (acari: ixodidae, haemaphysalis) is postulated. h. hispanica and h. caucasica seem to be the most primitive species of the subgenus, closely related to a common ancestor, as can be deduced from the palpal outline and from the combination of spines and spurs on the coxae and palpi. however, h. adleri, h. asiatica, h. fossae, h. eupleres, and h. obtusa compose a group of phylogenetically more-advanced species, based on the deve ... | 1990 | 2332881 |
| [ixodes ricinus, haemaphysalis concinna and dermacentor reticulatus (ixodida, ixodidae) in the east german district of leipzig]. | haemaphysalis concinna and dermacentor reticulatus mostly occur in narrow-limited humid biotopes of certain landscapes, whereas ixodes ricinus--as wellknown--occurs more or less occupying the whole territory in kind of a mosaic; in regard of epidemiological questions at least, such a distribution may be resumed for ixodes ricinus. haemaphysalis concinna nearly regularly may be found in certain biotopes. considering the possible role of haemaphysalis concinna and dermacentor reticulatus as vector ... | 1990 | 2389828 |