| a model to forecast the habitat suitability for dermacentor marginatus ticks in europe using remote sensing. | | 2003 | 12860636 |
| internal and external mycoflora of the american dog tick, dermacentor variabilis (acari: ixodidae), and its ecological implications. | scopulariopsis brevicaulis, the anamorph of microascus brevicaulis (microascaceae, ascomycota), has been identified in the body contents of the tick dermacentor variabilis. after topical application of the fungal inoculum, tick mortality was marked. this is the first account describing the internal mycoflora of d. variabilis with a novel technique used to recover potential biological control agents. | 2003 | 12902299 |
| [virulence of strains of pasteurella tularensis isolated by direct culture from mature ticks dermacentor marginatus collected in natural conditions]. | | 1955 | 13257821 |
| [isolation of leptospira strains from the tick dermacentor marginatus s. removed from big horned cattle]. | | 1957 | 13423818 |
| [neo-rickettsial infections in man after bite of dermacentor marginatus]. | | 1957 | 13460672 |
| [summer passivity of field-matured dermacentor marginatus sulz. and the duration of their fasting in the south-eastern part of the chernozem center]. | | 1958 | 13589480 |
| elimination of the virus of eastern equine encephalomyelitis (eee) in the faeces of experimentally infected ticks ixodes ricinus l. and dermacentor marginatus sulz. | | 1958 | 13594715 |
| [demonstration of an agent of the rickettsial group from dermacentor marginatus isolated from cattle in central france: experiments on modification of the type]. | | 1961 | 13705742 |
| experimental study of dermacentor marginatus sulz. and rhipicephalus rossicus jak. et k. jak. ticks as vectors of tularemia. | | 1960 | 13734970 |
| [the length of the day as a factor determining delay of egg-laying in females of dermacentor marginatus sulz]. | | 1963 | 14053429 |
| [effect of excess humidity of the time of development of larvae of the tick. dermacentor pictus herm, and dermacentor marginatus sulz]. | | 1964 | 14198838 |
| [experimental infection of dermacentor marginatus (sulz) nymphs with leptospira pomona]. | | 1965 | 14345016 |
| [stages of development and sensitivity to photoperiodic influences in dermacentor marginatus (sulz)]. | | 1965 | 14345029 |
| [on the nature of ovogenesis inhibition in imaginal diapause in dermacentor marginatus]. | | 1965 | 14345031 |
| experimental hibernation of the virus of the eastern type of north american equine encephalomyelitis (eee) in czechoslovak species of ticks. (ixodes ricinus l. and dermacentor marginatus sulz). | | 1960 | 14437006 |
| [on delayed oviposition by the tick dermacentor marginatus]. | | 1962 | 14461698 |
| [on the transovarian transmission of the tularemia pathogen in ticks dermacentor marginatus sulz]. | | 1962 | 14485933 |
| detection and identification of spotted fever group rickettsiae in ticks collected in southern croatia. | a total of 197 ticks belonging to four species (haemaphysalis punctata, hyalomma marginatum, rhipicephalus bursa and dermacentor marginatus) collected in october 2000 from domestic animals in southern croatia were examined for the presence of rickettsiae by molecular techniques. specific sequences of the rickettsiae were detected in 25 (12.7%) of ticks tested. the prevalence of infection in d. marginatus and h. marginatum ticks was 36.8 and 64.7%, respectively. none of the ticks belonging to the ... | 2002 | 14570128 |
| [ecology of larvae and nymphs of the tick dermacentor marginatus sulz. in the voronezh region]. | | 1951 | 14837467 |
| detection of antibodies to tick salivary antigens among patients from a region of spain. | with a view to determine which tick species bite humans most frequently in the province of soria (spain) and to know whether these species act as vectors of rickettsia conorii and/or borrelia burgdorferi, we analysed the presence of antibodies against salivary proteins of several tick species and of antibodies against r. conorii and b. burgdorferi sensu lato in 102 samples of serum. the sera were collected from 63 patients who were treated for tick bites at the health services of the soria healt ... | 2004 | 15012027 |
| dermacentor-borne necrosis erythema and lymphadenopathy: clinical and epidemiological features of a new tick-borne disease. | this paper describes the epidemiological and clinical features of a tick-borne disease differing somewhat from other tick-borne diseases found previously in spain. all patients were bitten by dermacentor marginatus or a large tick. the clinical features include a crustaceous or necrotic lesion at the site of the tick's attachment, surrounded by an erythema (erythema migrans-like) and painful regional lymphadenopathies. the probable aetiological agent is rickettsia slovaca. similar cases have bee ... | 2004 | 15059122 |
| detection of a rickettsia closely related to rickettsia aeschlimannii, "rickettsia heilongjiangensis," rickettsia sp. strain rpa4, and ehrlichia muris in ticks collected in russia and kazakhstan. | using pcr, we screened 411 ticks from four genera collected in russia and kazakhstan for the presence of rickettsiae and ehrlichiae. in russia, we detected "rickettsia heilongjiangensis," rickettsia sp. strain rpa4, and ehrlichia muris. in kazakhstan, we detected rickettsia sp. strain rpa4 and a rickettsia closely related to rickettsia aeschlimannii. these agents should be considered in a differential diagnosis of tick-borne infections in these areas. | 2004 | 15131195 |
| species composition, distribution, and ecological preferences of the ticks of grazing sheep in north-central spain. | the distribution and ecological preferences of tick (acari: ixodidae) parasites of grazing sheep in the region of aragón (north-central spain) were surveyed on flocks four times a year and mapped into a 5 x 5 km grid. nine tick species were found. these were species of the rhipicephalus sanguineus group (about 95% of them rhipicephalus turanicus pomerantsev, in 91% of cells of the grid), rhipicephalus bursa canestrini & fanzago (79% of cells), dermacentor marginatus (sulzer) (58% of cells), haem ... | 2004 | 15189237 |
| cross-sectional survey of ticks (acari: ixodidae) in sheep from an area of the southern italian apennines. | a cross-sectional survey of ticks was conducted on 197 ovine farms with animals pasturing in an area (3971 km2) of the southern italian apennines. the farms were selected to be uniformly distributed throughout the study area using geographical information system (gis). ticks were collected from 309 (31.4%) out of the 985 sheep sampled, belonging to 92 (46.7%) out of the 197 farms included in the study. the following tick species were found (farm prevalence): dermacentor marginatus (37.6%), haema ... | 2004 | 15285146 |
| [variability of the hard dorsal idiosomal tegument pattern and other phenotypic characters as a manifestation of microevolution in dermacentor marginatus (acari: ixodidae)]. | the pattern of male conscutum and female scutum in dermacentor marginatus has been examined in 6 points of the east-european and asian parts of its range (fig. 1). a high rate of modification variability of the pattern has been recovered in each geographical sample. it is shown that populations differ reliably from each other by the length of the dark patches on the marginal flank of the conscutum (nkappabeta, npkappabeta, 3kappabeta); some samples also differ by the number of these patches, com ... | 2004 | 15553768 |
| [ticks (acarina: ixodidae) as vectors and reservoirs of pathogen microorganisms in spain]. | hard and soft-ticks are obligate haematophagous arachnids of medical and veterinary significance mainly because of the animal disease agents transmitted by them, which include an array of different pathogens (virus, bacteria, protozoa and nematodes). ticks transmit microbes by several routes including salivary secretions, coxal fluids, regurgitation and faeces. among the biological factors that contribute to the high vector potential of ticks are their living habits and characteristic properties ... | 2005 | 15743581 |
| novel flavivirus or new lineage of west nile virus, central europe. | a flavivirus (strain 97-103) was isolated from culex pipens mosquitoes in 1997 following floods in south moravia, czech republic. the strain exhibited close antigenic relationship to west nile virus (wnv) prototype strain eg-101 in a cross-neutralization test. in this study, mouse pathogenicity characteristics and the complete nucleotide and putative amino acid sequences of isolate 97-103, named rabensburg virus (rabv) after a nearby austrian city, were determined. rabv shares only 75%-77% nucle ... | 2005 | 15752439 |
| rickettsiae in ixodid ticks, sicily. | | 2005 | 15789496 |
| ixodid tick species attaching to dogs in hungary. | a survey was carried out to investigate the occurrence of hard tick species (acari: ixodidae) infesting domestic dogs in hungary. forty veterinary clinics from a wide geographical area were asked to collect hard ticks from dogs and to complete a questionnaire. in total, 25 veterinary clinics submitted 900 ticks from 310 dogs. intensity of infestation ranged from one to 78 per dog. the most preferred sites of tick attachment in decreasing order were head, neck and legs. the majority of ticks (91. ... | 2005 | 15817212 |
| [autochthonous cases of canine babesiosis in the canton solothurn]. | starting in november 2003 a series of five clinical cases of canine babesiosis was registered in the region of obergösgen (canton solothurn). all presented dogs showed increased body temperature, thrombocytopenia and hemoglobinuria, and none of the dogs had been abroad or visited endemic regions in the southern or western part of switzerland so far. babesia canis was detected in the blood smears of all five patients, but only three had detectable specific antibodies against this parasite. howeve ... | 2005 | 15999636 |
| coxiella burnetii genotyping. | coxiella burnetii is a strict intracellular bacterium with potential as a bioterrorism agent. to characterize different isolates of c. burnetii at the molecular level, we performed multispacer sequence typing (mst). mst is based on intergenic region sequencing. these regions are potentially variable since they are subject to lower selection pressure than the adjacent genes. we screened 68 spacers in 14 isolates and selected the 10 that exhibited the most variation. these spacers were then tested ... | 2005 | 16102309 |
| the distribution of ticks (acari: ixodidae) of domestic livestock in portugal. | this paper introduces the first countrywide faunistic study of the tick parasites on ruminants in portugal. the aim of this study was to map accurately the distribution of the ticks dermacentor marginatus, rhipicephalus (boophilus) annulatus, r. bursa, hyalomma m. marginatum, h. lusitanicum and ixodes ricinus in portugal. additional information about the abiotic preferences of these species has been obtained through the use of abiotic (temperature- and vegetation-derived) variables have been rec ... | 2005 | 16132737 |
| tick species and tick-borne infections identified in population from a rural area of spain. | to determine the tick species that bite humans in the province of soria (spain) and ascertain the tick-borne pathogens that threaten people's health in that province, 185 tick specimens were collected from 179 patients who sought medical advice at health-care centres. the ticks were identified, and their dna examined by pcr for pathogens. most ticks were collected in autumn and spring (59 and 57 respectively). nine species of ticks were identified, the most frequent being dermacentor marginatus ... | 2005 | 16181517 |
| tick-borne rickettsioses around the world: emerging diseases challenging old concepts. | during most of the 20th century, the epidemiology of tick-borne rickettsioses could be summarized as the occurrence of a single pathogenic rickettsia on each continent. an element of this paradigm suggested that the many other characterized and noncharacterized rickettsiae isolated from ticks were not pathogenic to humans. in this context, it was considered that relatively few tick-borne rickettsiae caused human disease. this concept was modified extensively from 1984 through 2005 by the identif ... | 2005 | 16223955 |
| [some aspects of intraspecific variability of the closely related species of the dermacentor marginatus complex (acari: ixodidae) as demonstration of microevolutionary process]. | individual and geographical variability of male conscutum pattern in five closely related species of the dermacentor marginatus complex (d. marginatus, d. ushakovae, d. niveus, d. silvarum, d. nuttalli) has been examined. the pattern has been examined in three to six geographical samples within each specific distribution range. it was established that the pattern of the conscutum central area is subjected to individual and geographical variability on an extreme degree and gives very few intraspe ... | 2005 | 16316053 |
| [ixodidae ticks in bishkek]. | the fauna of ixodidae ticks was studied in bishkek in 1998-2004. the city is situated in the center of the chuisk valley, at the foot of the kirghiz ridge, at the boundary of a submountain-plain-arid region and a plain-piedmont-semiarid one with steppe fragments. the ticks were gathered on a flag from small mammalians caught by gero traps, from birds, domestic and agricultural animals. a total of 648 animals of 13 species were examined. the bites of ticks were registered in 98 persons in the cit ... | 2005 | 16445237 |
| effect of antibiotic treatment in patients with debonel/tibola. | debonel/tibola is a tick-borne acute/sub-acute infection transmitted in our environment by dermacentor marginatus and mainly caused by rickettsia slovaca. the aim of our study was to know the effect of starting early treatment in the course of the debonel/tibola. | 2005 | 16481523 |
| ticks infesting livestock on farms in western sicily, italy. | the results of a 2-year survey on ticks infesting livestock on farms in western sicily, italy, are reported. several dogs living in the same area were also examined for ticks. moreover, free-living ticks from one cattle farm were caught by co(2) traps and flagging. a total of 6208 specimens was collected belonging to 9 species: rhipicephalus bursa (32.4%), rhipicephalus turanicus (22.7%), rhipicephalus sanguineus (19.3%), hyalomma lusitanicum (12.0%), haemaphysalis punctata (7.8%), hyalomma marg ... | 2006 | 16550337 |
| mediterranean spotted fever: clinical and laboratory characteristics of 415 sicilian children. | mediterranean spotted fever (msf) is an acute febrile, zoonotic disease caused by rickettsia conorii and transmitted to humans by the brown dogtick rhipicephalus sanguineus. nearly four hundred cases are reported every year (mainly from june to september) on the italian island of sicily. the aim of the study was to analyze the clinical and laboratory characteristics of patients with msf and the efficacy of the drugs administered. | 2006 | 16553943 |
| [the species composition of mosquitoes and ticks in armenia]. | comprehensive epidemiological, entomological, virological, and parasitological studies were conducted to examine the species composition and size of bloodsucking arthropoda (mosquitoes and ticks). a total of 64,567 mosquitoes and 45,180 ixodes ticks were collected. among the mosquitoes, anopheles maculipennis was a prevalent species (81.6%). in all climatic zones, dermacentor marginatus was the largest in number and most abundant during flag collections from cattle and plants (62.5% and 95.5%, r ... | 2006 | 16562747 |
| ixodid ticks parasitizing iberian red deer (cervus elaphus hispanicus) and european wild boar (sus scrofa) from spain: geographical and temporal distribution. | commercial hunting of spanish wild ungulates has made them an important economic resource. wild ungulates may have an important role in the maintenance of ixodid tick populations, and also as reservoirs of pathogens. we studied the ixodid ticks that parasitize iberian red deer and european wild boar from spain. ixodid ticks (n=6,336) were collected from 431 iberian red deer and 142 wild boar in different regions of spain. we found 10 different ixodid tick species parasitizing iberian red deer, m ... | 2006 | 16675125 |
| lineage 1 and 2 strains of encephalitic west nile virus, central europe. | two different west nile virus (wnv) strains caused lethal encephalitis in a flock of geese and a goshawk in southeastern hungary in 2003 and 2004, respectively. during the outbreak in geese, 14 confirmed human cases of wnv encephalitis and meningitis were reported in the same area. sequencing of complete genomes of both wnv strains and phylogenetic analyses showed that the goose-derived strain exhibits closest genetic relationship to strains isolated in 1998 in israel and to the strain that emer ... | 2006 | 16704810 |
| francisella tularensis in rodents, china. | a total of 420 rodents in china were examined for francisella tularensis by polymerase chain reaction. the infection rates were 4.76% in total, and 11.65%, 10.00%, 6.56%, 1.77%, and 0% in jilin, xinjiang, heilongjiang, inner mongolia, and zhejiang, respectively. sequence analysis showed that all the detected agents belonged to f. tularensis subsp. holarctica. | 2006 | 16707060 |
| rickettsia slovaca infection, france. | | 2006 | 16710981 |
| [ixodes ricinus. health risks and approaches in prevention]. | ticks belong to the parasitical mites. there are more than 1000 different species worldwide which do need blood of warm-blooded organisms for their own development. as ticks are well known to be vectors of several pathogens which could cause insidious infectious diseases, they are important in human and veterinarian medicine as well. it is not possible to control ticks in nature. therefore the first step should be an effective prevention. in case of a bite the tick must be removed as soon as pos ... | 2006 | 16719260 |
| rickettsia sibirica isolation from a patient and detection in ticks, portugal. | we report the first isolation of rickettsia sibirica (strain mongolotimonae) from the blood of a patient and detection by polymerase chain reaction (pcr) of the rickettsia in a rhipicephalus pusillus tick collected from a dead mongoose (herpestes ichneumon) in the alentejo region, portugal. we describe also the first pcr detection of a new rickettsia strain that is related to r. sibirica. | 2006 | 16836827 |
| babesia spp. identified by pcr in ticks collected from domestic and wild ruminants in southern switzerland. | concurrent infections with vector-borne pathogens affected a cattle herd in switzerland, and one of the pathogens was identified as babesia bigemina, which had never been observed in this country before. therefore, a survey of the occurrence of ruminant babesia spp. and their tick vectors in switzerland was conducted. a total of 2,017 ticks were collected from sheep, goats, cattle, and wild ruminants (deer, roe deer, and chamois) in southern parts of switzerland and identified morphologically. t ... | 2006 | 17021198 |
| molecular method for identification of rickettsia species in clinical and environmental samples. | we present a pcr method targeting the 23s-5s internal transcribed spacer coupled with reverse line blotting that allows rickettsia species detection and identification in a single step. the method is highly sensitive and specific in identifying rickettsia species from both patient and environmental samples. the generic approach used allowed us to identify new pathogens. | 2006 | 17035495 |
| rickettsia slovaca infection: debonel/tibola. | this study describes the epidemiological, clinical, and microbiological characteristics of a new tick-borne disease in spain-dermacentor-borne necrosis erythema lymphadenopathy (debonel). the clinical presentations include an eschar at the site of the tick bite, surrounded by an erythema and painful regional lymphadenopathy. the disease appears during the colder months and its vector is dermacentor marginatus (d. marginatus). from january 1990 to december 2004, 54 patients presented at hospital ... | 2006 | 17114711 |
| detection of anaplasma phagocytophilum, coxiella burnetii, rickettsia spp., and borrelia burgdorferi s. l. in ticks, and wild-living animals in western and middle slovakia. | in this study, three tick species (ixodes ricinus, dermacentor marginatus, and d. reticulatus), small terrestrial mammals, and game were examined by pcr for the presence of tick-borne pathogens anaplasma phagocytophilum, coxiella burnetii, rickettsia spp., and borrelia burgdorferi sensu lato. | 2006 | 17114728 |
| prevalence of spotted fever group rickettsia species detected in ticks in la rioja, spain. | our objective was to learn the prevalence of spotted fever group (sfg) rickettsia detected in ticks in la rioja, in the north of spain. from 2001 to 2005, 496 ticks representing 7 tick species were analysed at the hospital de la rioja. ticks were removed from humans with or without rickettsial syndrome (n = 59) or collected from mammals (n = 371) or from vegetation by dragging (n = 66). the presence of sfg rickettsia in these ticks was investigated by semi-nested pcr (ompa gene) and sequencing. ... | 2006 | 17114730 |
| prevalence of rickettsia slovaca in dermacentor marginatus ticks removed from wild boar (sus scrofa) in northeastern spain. | rickettsia slovaca, the causative agent of tibola, is transmitted by dermacentor ticks. dermacentor marginatus is the most widely species distributed in northeastern spain, and the wild boar constitutes the main host. d. marginatus ticks were collected from hunter-killed wild boar and were tested by pcr/rflp. rickettsial dna-positive ticks were sequenced using the ompa pcr primers. the prevalence of r. slovaca in d. marginatus ticks was 17.7%. other spotted fever group rickettsiae were detected ... | 2006 | 17114731 |
| prevalence data of rickettsia slovaca and other sfg rickettsiae species in dermacentor marginatus in the southeastern iberian peninsula. | in southern spain, dermacentor marginatus ticks can be infected with several genospecies of spotted fever group (sfg) rickettsia. we developed a nested polymerase chain reaction assay by using a species-specific probe targeting the ompa gene to detect and differentiate between the two groups of rickettsiae previously described in d. marginatus. sfg rickettsia has been detected in 85.15% of ticks studied (26.7% of positives have been to r. slovaca, the causative agent of tibola-debonel, and 73.3% ... | 2006 | 17114732 |
| ticks, tick-borne rickettsiae, and coxiella burnetii in the greek island of cephalonia. | domestic animals are the hosts of several tick species and the reservoirs of some tick-borne pathogens; hence, they play an important role in the circulation of these arthropods and their pathogens in nature. they may act as vectors, but, also, as reservoirs of spotted fever group (sfg) rickettsiae, which are the causative agents of sfg rickettsioses. q fever is a worldwide zoonosis caused by coxiella burnetii (c. burnetii), which can be isolated from ticks. a total of 1,848 ticks (954 female, 8 ... | 2006 | 17114747 |
| infection of ixodes scapularis ticks with rickettsia monacensis expressing green fluorescent protein: a model system. | ticks (acari: ixodidae) are ubiquitous hosts of rickettsiae (rickettsiaceae: rickettsia), obligate intracellular bacteria that occur as a continuum from nonpathogenic arthropod endosymbionts to virulent pathogens of both arthropod vectors and vertebrates. visualization of rickettsiae in hosts has traditionally been limited to techniques utilizing fixed tissues. we report epifluorescence microscopy observations of unfixed tick tissues infected with a spotted fever group endosymbiont, rickettsia m ... | 2007 | 17125789 |
| [determination of tick species and treatment of cows, sheep and goats in the sivas-zara region]. | the purpose of this study was to examine tick infestation in cattle, sheep and goats in the zara-sivas region for one year and to determine the epizootiology of the tick species as well as to investigate treatment of the infested animals. tick infestation was detected in 71 (29.6%) out of 240 cattle, 66 (24.0%) out of 275 sheep and 50 (19.9%) out of 252 goats in the zara region. it has been shown that the tick infestation on cattle included haemaphysalis parva (33.8%), dermacentor marginatus (2. ... | 2006 | 17160854 |
| gene silencing of the tick protective antigens, bm86, bm91 and subolesin, in the one-host tick boophilus microplus by rna interference. | the use of rna interference (rnai) to assess gene function has been demonstrated in several three-host tick species but adaptation of rnai to the one-host tick, boophilus microplus, has not been reported. we evaluated the application of rnai in b. microplus and the effect of gene silencing on three tick-protective antigens: bm86, bm91 and subolesin. gene-specific double-stranded (dsrna) was injected into two tick stages, freshly molted unfed and engorged females, and specific gene silencing was ... | 2007 | 17196597 |
| first serological and molecular evidence on the endemicity of anaplasma ovis and a. marginale in hungary. | recurring and spontaneously curing spring haemoglobinuria was recently reported in a small sheep flock in a selenium deficient area of northern hungary. in blood smears of two animals showing clinical signs, anaplasma-like inclusion bodies were seen in erythrocytes. to extend the scope of the study, 156 sheep from 5 flocks and 26 cattle from 9 farms in the region were examined serologically with a competitive elisa to detect antibodies to anaplasma marginale, a. centrale and a. ovis. the seropos ... | 2007 | 17336001 |
| the role of wild boar (sus scrofa) in the eco-epidemiology of r. slovaca in northeastern spain. | rickettsia slovaca is considered the etiological agent of tick-borne lymphadenopathy (tibola), an emerging disease transmitted by tick bites. dermacentor marginatus constitutes the most important vector and wild boar (sus scrofa) is the main wild host in our area. the epidemiology of this tick-borne rickettsioses has not been completely clarified. during hunting season 2004, wild boar sera sample were collected from northeastern spain. ticks were collected both from wild boar and from flagging v ... | 2007 | 17417958 |
| emerging zoonoses and vector-borne infections affecting humans in europe. | the purpose of this study was to assess and describe the current spectrum of emerging zoonoses between 2000 and 2006 in european countries. a computerized search of the medline database from january 1966 to august 2006 for all zoonotic agents in european countries was performed using specific criteria for emergence. fifteen pathogens were identified as emerging in europe from 2000 to august 2006: rickettsiae spp., anaplasma phagocytophilum, borrelia burgdorferi, bartonella spp., francisella tula ... | 2007 | 17445320 |
| tick-borne flavivirus infection in ixodes scapularis larvae: development of a novel method for synchronous viral infection of ticks. | following a bite from an infected tick, tick-borne flaviviruses cause encephalitis, meningitis and hemorrhagic fever in humans. although these viruses spend most of their time in the tick, little is known regarding the virus-vector interactions. we developed a simple method for synchronously infecting ixodes scapularis larvae with langat virus (lgtv) by immersion in media containing the virus. this technique resulted in approximately 96% of ticks becoming infected. lgtv infection and replication ... | 2007 | 17490700 |
| rickettsia sp. strain rpa4 detected in portuguese dermacentor marginatus ticks. | dermacentor marginatus species is the common vector of rickettsia slovaca. recently, a new rickettsia genotype, rpa4, was detected in several dermacentor sp. ticks in several countries of the former soviet union and in spain. in an epidemiological surveillance study, ninety-eight d. marginatus, collected in the south of portugal in spring of 2003 and 2004, were screened by polymerase chain reaction (pcr) to detect rickettsiae. overall, 59.2% of the ticks were pcr-positive, among them 34.5% were ... | 2007 | 17627441 |
| animal babesiosis: an emerging zoonosis also in italy? | in italy, babesiosis is widespread in several central and southern regions, but few data are available on its presence in most italian areas. in 2004 a project was financed by the miur to investigate on the babesiosis epidemiology in vertebrate and invertebrate hosts, and on the transmission risk for humans in central and northern regions of the country. microscopy and/or molecular tools were applied to blood samples of wild animals, livestock and pets, and to 1,677 ticks collected on animals or ... | 2007 | 17691605 |
| climate niches of tick species in the mediterranean region: modeling of occurrence data, distributional constraints, and impact of climate change. | in this study, we used ecological niche factor analysis (enfa) and principal components analysis (pca) of climate variables to define the climate niches and areas of potential colonization of six species of ticks in the mediterranean region: dermacentor marginatus sulzer, rhipicephalus bursa canestrini & fanzago, rhipicephalus turanicus pomerantsev, matikashvili & lototsky, hyalomma marginatum koch, hyalomma excavatum koch, and boophilus annulatus (say). enfa generated distribution models that v ... | 2007 | 18047215 |
| ticks biting humans in the urban area of istanbul. | a passive surveillance for tick bites in humans was undertaken in the city of istanbul (turkey) in the summer and autumn of 2006. from 1,054 reported tick bites, most were females of ixodes ricinus (27%) and nymphs of hyalomma aegyptium (50%). a few adults of hyalomma m. marginatum, rhipicephalus sanguineus and dermacentor marginatus were also recorded. we investigated potential risk factors for i. ricinus and h. aegyptium with spatial statistics. climate features at 1-km resolution (monthly min ... | 2008 | 18074152 |
| an outbreak of tick paralysis in free-ranging mouflon (ovis ammon musimon). | during november 2006, two live and one dead mouflon (ovis ammon musimon) were presented with a history of weakness, tremors, and paralysis. after a detailed gross and histologic examination and a bacteriologic, parasitologic, and rabies evaluation, a preliminary diagnosis of tick paralysis was established. a thorough field search revealed 13 affected mouflons found in the open hunting ground "sveti juraj" near the town of senj (croatia), along with an additional 35 mouflon carcasses. all 13 mouf ... | 2007 | 18229866 |
| rickettsia slovaca in dermacentor marginatus and tick-borne lymphadenopathy, tuscany, italy. | of 263 patients in tuscany, italy, from whom ticks were removed during july 2005-may 2007, five showed signs of tick-borne encephalopathy. of the ticks, 17 were dermacentor marginatus; 6 (35.3%) of these were identified by sequence analysis as containing rickettsia slovaca. tick-borne lympadenopathy occurs in this area. | 2008 | 18439371 |
| molecular identification of anaplasma marginale and rickettsial endosymbionts in blood-sucking flies (diptera: tabanidae, muscidae) and hard ticks (acari: ixodidae). | in an attempt to identify the main vector and possible transmission routes of anaplasma spp. in a region of hungary with high prevalence of ovine and bovine anaplasmosis, dna was extracted from 316 haematophagous arthropods (individually or in pools), including 4 species of ixodid ticks, 6 species of tabanid flies and hornflies. midichloria-like organisms were identified with pcr (amplifying a portion of the 16s rrna gene) and sequencing from dermacentor marginatus and ixodes ricinus. significan ... | 2008 | 18495345 |
| tick-borne lymphadenopathy: a new infectious disease in children. | to describe the epidemiologic and clinical aspects of patients with tick-borne lymphadenopathy (tibola). | 2008 | 18520970 |
| ticks infesting domestic animals in northern greece. | the tick species infesting grazing animals in the countryside of 11 prefectures in northern greece were investigated during april-july and september-december of consecutive years 2003-2006. a total of 3,249 (1,952 males, 1,297 females) adult ticks were collected from goats, sheep, cattle and dogs. ticks were identified as ixodes ricinus (44.57%), ixodes gibbosus (4.09%), rhipicephalus bursa (19.14%), rhipicephalus sanguineus, rhipicephalus turanicus (5.79%), hyalomma marginatum marginatum (12.40 ... | 2008 | 18563592 |
| spotted fever group rickettsiae in ticks, morocco. | a total of 370 ticks, encompassing 7 species from 4 genera, were collected during 2002-2006 from domestic animals and vegetation in the taza region of northeastern morocco. rickettsial dna was identified in 101 ticks (27%) by sequencing pcr products of fragments of the citrate synthase and outer membrane protein genes of rickettsia spp. seven rickettsiae of the spotted fever group were identified, including 4 pathogens: r. aeschlimannii in hyalomma marginatum marginatum, r. massiliae in rhipicep ... | 2008 | 18598627 |
| rickettsia raoultii sp. nov., a spotted fever group rickettsia associated with dermacentor ticks in europe and russia. | we describe the characterization of a novel rickettsia species cultivated from dermacentor ticks collected in russia and france, for which we propose the name rickettsia raoultii sp. nov. using multigene sequencing, we demonstrated that five rickettsial isolates from dermacentor silvarum, dermacentor reticulatus, dermacentor marginatus and dermacentor nuttalli ticks were classified within this novel spotted fever rickettsia species. this rickettsia also exhibited a serotype distinct from previou ... | 2008 | 18599708 |
| rickettsia slovaca infection in humans in the northeast of spain: seroprevalence study. | catalonia is an endemic area of mediterranean spotted fever. in 1997, a. lakos described a new tick-borne infectious disease called tick-borne lymphadenopathy. the causative agent is rickettsia slovaca, which is transmitted by dermacentor marginatus ticks. we have diagnosed human cases in catalonia. the objective of this study was to determinate seroprevalence of r. slovaca infection in humans in the northeast of spain. the population included 217 subjects from catalonia, northeast of spain and ... | 2008 | 18620514 |
| spotted fever group rickettsia in ticks from southeastern spain natural parks. | during an 8-years study, we collected from vegetation or domestic and wild mammals 1246 ticks (624 males, 511 females and 111 nymphs) belonging to 13 species in jaen province (andalusia) and we analyzed these ticks by pcr and sequencing for the presence of rickettsiae. specific rickettsiae dna was detected in 243 (19.5%) of the ticks tested. sequence analysis of amplicons of glta, ompa and ompb genes revealed that ixodes ricinus were infected with r. monacensis, including strain irs3, and r. hel ... | 2008 | 18677442 |
| a gis framework for the assessment of tick impact on human health in a changing climate. | a framework to evaluate the impact of ticks on human health under various scenarios of climate change is proposed. the purpose is not to provide a comprehensive plan (e.g. the economic impact of ticks on human society is not included), instead we wish to describe a series of indices that would be helpful by obtaining homogeneous comparisons of impact and vulnerability exerted by ticks in different regions, countries or continents, using normalized sets of population, vegetation, climate and phys ... | 2007 | 18686241 |
| evidence of the importance of host habitat use in predicting the dilution effect of wild boar for deer exposure to anaplasma spp. | foci of tick-borne pathogens occur at fine spatial scales, and depend upon a complex arrangement of factors involving climate, host abundance and landscape composition. it has been proposed that the presence of hosts that support tick feeding but not pathogen multiplication may dilute the transmission of the pathogen. however, models need to consider the spatial component to adequately explain how hosts, ticks and pathogens are distributed into the landscape. in this study, a novel, lattice-deri ... | 2008 | 18714379 |
| detection of francisella tularensis in ticks and identification of their genotypes using multiple-locus variable-number tandem repeat analysis. | tularemia was reported in china over 50 years ago, however, many epidemical characteristics remain unclear. in the present study, the prevalence of francisella tularensis in ticks was investigated during an epidemiological surveillance in china and then we measured their genetic diversity by conducting multiple-locus variable- number tandem repeat analysis (mlva). | 2008 | 18798995 |
| detection of coxiella burnetii in ticks collected from central spain. | a total of 1482 adult ticks collected from vegetation and animals in central spain in 2003-2005 were tested for the presence of coxiella burnetii by polymerase chain reaction and subsequent reverse line blot hybridization (pcr-rlb). c. burnetii was identified in 7.7% of questing ticks (80/1039) and 3.4% of ticks collected from animals (15/443) belonging to four species: hyalomma lusitanicum, dermacentor marginatus, rhiphicephalus sanguineus, and r. pusillus. these findings show an active role of ... | 2009 | 18945192 |
| prevalence and genotypes of anaplasma species and habitat suitability for ticks in a mediterranean ecosystem. | anaplasma species are tick-transmitted pathogens that impact veterinary and human health. sicily is one of the locations where these pathogens are endemic. sicily represents a typical mediterranean ecosystem to study anaplasma infection and tick habitat suitability. the aims of this study were (i) to characterize by 16s rrna and species-specific msp4 gene pcr the prevalence and genotypes of a. marginale, a. phagocytophilum, and a. ovis in the most abundant host species in sicilian provinces and ... | 2008 | 18978093 |
| rickettsia helvetica in dermacentor reticulatus ticks. | we report on the molecular evidence that dermacentor reticulatus ticks in croatia are infected with rickettsia helvetica (10%) or rickettsia slovaca (2%) or co-infected with both species (1%). these findings expand the knowledge of the geographic distribution of r. helvetica and d. reticulatus ticks. | 2009 | 19116063 |
| influence of biotope on the distribution and peak activity of questing ixodid ticks in hungary. | in order to update the occurrence of hard tick species in hungary, 3442 questing ticks were collected from the vegetation by the dragging/flagging method in 37 different places in the country, between march and june of 2007. ixodes ricinus (l.) turned out to be ubiquitous. dermacentor marginatus (schulzer) was absent from sampling sites in the southwestern part of the country, but in most places was concomitant and contemporaneous with dermacentor reticulatus (fabricius). these two species, as w ... | 2009 | 19239612 |
| occurrence of rickettsia felis in dog and cat fleas (ctenocephalides felis) from italy. | abstract : rickettsia felis is an obligate intracellular bacterium belonging to the spotted fever group, suspected to cause a murine typhus-like illness in humans, with a cosmopolitan distribution. this study was designed to estimate presence and occurrence of this pathogen in fleas collected from dogs and cats in different areas of italy. two species of fleas were identified, ctenocephalides felis (80.3%) and ctenocephalides canis (19.7%).overall, 320 fleas (257 c. felis and 63 c. canis) collec ... | 2009 | 19426447 |
| molecular characterization of hard and soft ticks from romania by sequences of the internal transcribed spacers of ribosomal dna. | in the present study, four hard tick species and one soft tick species, namely, dermacentor marginatus, haemaphysalis punctata, haemaphysalis parva, ixodes ricinus, and dermanyssus gallinae, from south-western romania were characterized genetically by the first (its-1) and second (its-2) internal transcribed spacers (its) of nuclear ribosomal dna (rdna), using a hard tick, haemaphysalis longicornis, from china for comparative purposes. the its rdna was amplified by polymerase chain reaction (pcr ... | 2009 | 19462182 |
| isolation of entomopathogenic fungi from soils and ixodes scapularis (acari: ixodidae) ticks: prevalence and methods. | entomopathogenic fungi are commonly found in forested soils that provide tick habitat, and many species are pathogenic to ixodes scapularis say, the blacklegged tick. as a first step to developing effective biocontrol strategies, the objective of this study was to determine the best methods to isolate entomopathogenic fungal species from field-collected samples of soils and ticks from an eastern deciduous forest where i. scapularis is common. several methods were assessed: (1) soils, leaf litter ... | 2009 | 19496427 |
| crimean-congo hemorrhagic fever, southwestern bulgaria. | | 2009 | 19523314 |
| typhus and other rickettsioses: emerging infections in germany. | rickettsioses are diseases caused by rickettsiae, obligate intracellular bacteria that are transmitted by arthropods to humans. they cause various types of spotted fever and typhus. | 2009 | 19547738 |
| tick-borne zoonotic bacteria in ticks collected from central spain. | the prevalence of tick-borne and related bacteria infecting adult ticks in central spain was assessed by molecular methods. six areas were sampled monthly during a 2-year longitudinal study. a total of 1,038 questing and 442 feeding ticks, belonging to eight different species, were tested. the most abundant species were hyalomma lusitanicum (54% of captures), followed by dermacentor marginatus (23%) and rhipicephalus sanguineus (10%). four human pathogens, including seven rickettsia species, ana ... | 2009 | 19556569 |
| genetic evidence for conspecificity between dermacentor marginatus and dermacentor niveus. | ticks are hematophagous arthropods transmitting several harmful human and animal pathogens like viruses, rickettsia, bacteria, and protozoa. the identification and speciation of ticks were normally performed in iran using identification key of arthur (1960) and kaiser and hoogstraal (j parasitol 49:130-139, 1963) or on the basis of morphological characteristic keys recommended by walker et al. (2003). although these identification keys are well prepared, but there are in some cases due to the st ... | 2009 | 19562378 |
| rickettsia slovaca and r. raoultii in tick-borne rickettsioses. | tick-borne lymphadenopathy (tibola), also called dermacentor-borne necrosis erythema and lymphadenopathy (debonel), is defined as the association of a tick bite, an inoculation eschar on the scalp, and cervical adenopathies. we identified the etiologic agent for 65% of 86 patients with tibola/debonel as either rickettsia slovaca (49/86, 57%) or r. raoultii (7/86, 8%). | 2009 | 19624931 |
| molecular investigation of hard ticks (acari: ixodidae) and fleas (siphonaptera: pulicidae) as potential vectors of rickettsial and mycoplasmal agents. | the aim of the present study was twofold. first, in general, to reveal new aspects of the potential vector role of ixodid ticks and fleas by screening large numbers of specimens with recently developed molecular biological methods. second, to evaluate the occurrence of vector-borne infectious agents in a geographical context. altogether 3442 unfed hard ticks (ixodes ricinus, dermacentor marginatus, d. reticulatus, haemaphysalis inermis, h. concinna, h. punctata) and 939 fleas of cats and dogs (c ... | 2010 | 19660880 |
| ixodes ricinus ticks are reservoir hosts for rickettsia helvetica and potentially carry flea-borne rickettsia species. | abstract: | 2009 | 19732416 |
| dermacentor marginatus and ixodes ricinus ticks versus l929 and vero cell lines in rickettsia slovaca life cycle evaluated by quantitative real time pcr. | ticks transmit many different pathogens to animals, humans and their pets. rickettsia slovaca, as a member of the spotted-fever-group rickettsiae is an agent of the human disease tick-borne lymphadenopathy (tibola), also called dermacentor-borne necrosis erythema and lymphadenopathy (debonel), which occurs from the mediterranean to central europe, transmitted by dermacentor reticulatus and dermacentor marginatus (acari: ixodidae). in this study, quantitative real time pcr was used to characteriz ... | 2010 | 19779862 |
| rickettsia slovaca and rickettsia raoultii in dermacentor marginatus ticks collected on wild boars in tuscany, italy. | during the hunting season 2007-2008, 494 dermacentor marginatus (sulzer) ticks were collected from 109 hunter-killed wild boars, sus scrofa, in lucca's province, tuscany, italy. rickettsia slovaca, the causative agent of tick-borne lymphadenopathy (tibola), was detected in 32.1% of ticks tested (n=112) by using polymerase chain reaction primers targeting glta, ompa, and ompb rickettsial genes. moreover, rickettsia raoultii was found for the first time in italy, with 1.8% infection prevalence. th ... | 2009 | 19960702 |
| rickettsia slovaca in dermacentor marginatus ticks, germany. | | 2009 | 19961713 |
| canine and feline vector-borne diseases in italy: current situation and perspectives. | in italy, dogs and cats are at risk of becoming infected by different vector-borne pathogens, including protozoa, bacteria, and helminths. ticks, fleas, phlebotomine sand flies, and mosquitoes are recognized vectors of pathogens affecting cats and dogs, some of which (e.g., anaplasma phagocytophilum, borrelia burgdorferi, dipylidium caninum, leishmania infantum, dirofilaria immitis, and dirofilaria repens) are of zoonotic concern. recent studies have highlighted the potential of fleas as vectors ... | 2010 | 20145730 |
| biogeography of tick-borne bhanja virus (bunyaviridae) in europe. | bhanja virus (bhav) is pathogenic for young domestic ruminants and also for humans, causing fever and affections of the central nervous system. this generally neglected arbovirus of the family bunyaviridae is transmitted by metastriate ticks of the genera haemaphysalis, dermacentor, hyalomma, rhipicephalus, boophilus, and amblyomma. geographic distribution of bhav covers southern and central asia, africa, and southern (partially also central) europe. comparative biogeographic study of eight know ... | 2010 | 20182535 |
| bartonella spp. transmission by ticks not established. | bartonella spp. infect humans and many animal species. mainly because pcr studies have demonstrated bartonella dna in ticks, some healthcare providers believe that these microorganisms are transmitted by ticks. b. henselae, in particular, is regarded as being present in and transmissible by the ixodes scapularis tick. the presence of a microbial agent within a tick, however, does not imply that the tick might transmit it during the course of blood feeding and does not confer epidemiologic import ... | 2010 | 20202410 |
| putative new lineage of west nile virus, spain. | to ascertain the presence of west nile virus (wnv), we sampled mosquitoes in 2006 in locations in southern spain where humans had been infected. wnv genomic rna was detected in 1 pool from unfed female culex pipiens mosquitoes. phylogenetic analysis demonstrated that this sequence cannot be assigned to previously described lineages of wnv. | 2010 | 20202444 |
| tick reservoirs for piroplasms in central and northern italy. | ticks, collected in central and northern italy from pets, livestock, wild animals and the environment (n=2107), were identified by microscopy and processed by molecular diagnostics to determine the species that act as a reservoir for piroplasms. a total of 11 ixodid tick species were identified, with five of them proving to be piroplasm positive. molecular diagnostics identified theileria equi and eight babesia species in 52 adult specimens, mostly (n=50) removed from piroplasm-free vertebrate h ... | 2010 | 20304560 |
| the application of lambda-cyhalothrin in tick control. | in recent years, in urban areas of novi sad, unique ecological conditions, specific floristic and faunistic composition and poor habits of citizens in sense of public health, facilitate the development and maintenance of ticks. regarding the importance of ticks as vectors of severe human and animal diseases, complex and detailed studies are conducted with an aim to find the most efficient methods for tick control. two tick species, ixodes ricinus and dermacentor marginatus, were identified durin ... | 2010 | 20309723 |