| citrate synthase gene comparison, a new tool for phylogenetic analysis, and its application for the rickettsiae. | using pcr and an automated laser fluorescent dna sequencer, we amplified and sequenced a 1,234-bp fragment of the citrate synthase-encoding gene (glta) of 28 bacteria belonging to the genus rickettsia. comparative sequence analysis showed that most of the spotted fever group (sfg) rickettsiae belonged to one of two subgroups. the first subgroup included rickettsia massiliae, strain bar 29, rickettsia rhipicephali, "rickettsia aeschlimanni," and rickettsia montana, which have been isolated only f ... | 1997 | 9103608 |
| rickettsia aeschlimannii sp. nov., a new spotted fever group rickettsia associated with hyalomma marginatum ticks. | we formally propose the name rickettsia aeschlimannii sp. nov. for a new spotted fever group (sfg) rickettsia, strain mc16t, isolated from hyalomma marginatum marginatum ticks collected in morocco. this organism shows a typical rickettsial morphology when analyzed by electron microscopy. after characterization by serotyping, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, western immunoblotting, pcr-restriction fragment length polymorphism (rflp), pulsed-field gel electrophoresis, and ... | 1997 | 9103647 |
| phylogenetic analysis of spotted fever group rickettsiae by study of the outer surface protein rompa. | rickettsiae are classified in the order rickettsiales and have been included in the alpha subclass of the class proteobacteria on the basis of 16s rrna gene sequence comparison. to estimate the evolutionary forces that have shaped the members of the spotted fever group (sfg) rickettsiae, the ompa gene (apart from the tandem repeat units), encoding an antigenic high-molecular-mass membrane protein specific for the group, was amplified and sequenced from 21 isolates. the phylogenetic relationship ... | 1998 | 9734038 |
| phylogeny of rickettsia spp. inferred by comparing sequences of 'gene d', which encodes an intracytoplasmic protein. | 'gene d' is the ps120-protein-encoding gene, first described in rickettsia conorii and rickettsia japonica. sequence analysis of a 3030 bp fragment of 'gene d' in 24 representatives of the genus rickettsia was carried out to complete phylogenetic analyses previously inferred by comparison of gene sequences encoding citrate synthase, 17 kda antigen and rompa and rompb. the phylogenetic relationships between rickettsiae were inferred from the comparison of both the gene and the derived protein seq ... | 2001 | 11491333 |
| first documented human rickettsia aeschlimannii infection. | | 2002 | 12095451 |
| rickettsia aeschlimannii: a new pathogenic spotted fever group rickettsia, south africa. | | 2002 | 12141981 |
| rickettsia aeschlimannii in spain: molecular evidence in hyalomma marginatum and five other tick species that feed on humans. | | 2003 | 12899141 |
| 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 |
| spotted fever group rickettsiae from ticks captured in sudan. | ticks were collected from ruminants in various areas of sudan in 1998 and 2000. primer pairs of rickettsial citrate synthase gene (glta) and a spotted fever group (sfg) rickettsial 190-kda surface antigen gene (rompa), respectively, were used for identification. polymerase chain reaction (pcr)-positive products were used for dna sequencing. the glta gene was detected in 55% of the ticks examined (57/104). among the 57 ticks studied, 19 were positive for the rompa gene. thus, 18% of the ticks exa ... | 2004 | 15218219 |
| rickettsia aeschlimannii in hyalomma ticks from corsica. | | 2004 | 15309667 |
| update on spotted fever group rickettsiae in south africa. | until very recently, mediterranean spotted fever caused by rickettsia conorii was the only spotted fever group (sfg) rickettsioses recognized in southern africa. however, increasing medical awareness of tick-borne infections, together with the introduction of improved isolation methods and the availability of molecular techniques, have led to the identification of several new sfg rickettsioses in the region. african tick bite fever, caused by rickettsia africae, is currently the most important o ... | 2004 | 15631070 |
| low risk of developing human rickettsia aeschlimannii infection in the north of spain. | | 2005 | 16481540 |
| ticks parasitizing wild birds in portugal: detection of rickettsia aeschlimannii, r. helvetica and r. massiliae. | from january 2002 to december 2004, 152 ticks were collected from 40 wild birds recovered in santo andré natural reserve and monsanto forestal park, portugal mainland. five ticks species were identified from 22 species of birds, and new host record were provided for some species. in addition, 32 (21%) ticks were screened by pcr to detect infections with agents belonging to order rickettsiales: anaplasma phagocytophilum, ehrlichia chaffeensis, and rickettsia spp. pcr amplicons were obtained in 5 ... | 2006 | 16897568 |
| rickettsial agents in egyptian ticks collected from domestic animals. | to assess the presence of rickettsial pathogens in ticks from egypt, we collected ticks from domestic and peridomestic animals between june 2002 and july 2003. dna extracts from 1019 ticks were tested, using pcr and sequencing, for anaplasma spp., bartonella spp., coxiella burnetii, ehrlichia spp., and rickettsia spp. ticks included: 29 argas persicus, 10 hyalomma anatolicum anatolicum, 55 hyalomma anatolicum excavatum, 174 hyalomma dromedarii, 2 hyalomma impeltatum, 3 hyalomma marginatum rufipe ... | 2006 | 17004028 |
| 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 |
| population survey of egyptian arthropods for rickettsial agents. | between june 2002 and july 2003, 987 fleas, representing four species, and 1019 ticks, representing one argasid and eight ixodid species, were collected from egyptian animals. these arthropods were tested for rickettsial agents using polymerase chain reaction. dnas from anaplasma and ehrlichia spp. were detected in 13 ticks. previously undescribed bartonella spp. were detected in 21 fleas. coxiella burnetii was detected in two fleas and 20 ticks. rickettsia typhi was detected in 27 fleas from 10 ... | 2006 | 17114742 |
| spotted fever rickettsioses in southern and eastern europe. | mediterranean spotted fever due to rickettsia conorii conorii was thought, for many years, to be the only tick-borne rickettsial disease prevalent in southern and eastern europe. however, in recent years, six more species or subspecies within the spotted fever group of the genus rickettsia have been described as emerging pathogens in this part of the world. tick-borne agents include rickettsia conorii israelensis, rickettsia conorii caspia, rickettsia aeschlimannii, rickettsia slovaca, rickettsi ... | 2007 | 17266709 |
| detection of a questing hyalomma marginatum marginatum adult female (acari, ixodidae) in southern germany. | the first finding of a questing hyalomma marginatum marginatum female tick in germany is described. the tick was found in may 2006 on the clothing of a person who had spent the preceding day in rural surroundings in southern germany. as the infested person had also been visiting spain where h. m. marginatum is known to occur some weeks prior to finding the tick, it is not clear whether the tick had been imported by him as a female or by another host in a preimaginal stage and succeeded to develo ... | 2007 | 17952610 |
| detection of rickettsia spp. in haemaphysalis ticks collected in la rioja, spain. | in an attempt to know the potential risk of human disease after exposure to ticks in la rioja (north of spain), the objective of our study was to investigate the presence of rickettsia species in haemaphysalis ticks collected in our area. a total of 177 haemaphysalis spp. belonging to three species (h. punctata, h. sulcata, and h. inermis) were subjected to dna extraction and tested by polymerase chain reaction (pcr) targeting three rickettsial genes: glta, ompb, and ompa. six (3 h. inermis, 2 h ... | 2008 | 18454590 |
| rickettsia aeschlimannii infection, algeria. | | 2008 | 18976583 |
| increased prevalence of rickettsia aeschlimannii in castilla y león, spain. | we report the increased prevalence recorded in recent years of rickettsia aeschlimannii in hyalomma marginatum marginatum ticks removed from human subjects in castilla y león (nw, spain). additionally, a simultaneous infection with r. aeschlimannii and anaplasma phagocytophilum in two h. marginatum marginatum ticks is reported for the first time. | 2009 | 18998174 |
| first direct detection of rickettsial pathogens and a new rickettsia, 'candidatus rickettsia barbariae', in ticks from sardinia, italy. | the present study evaluated the molecular detection and identification of rickettsia species in 83 ticks collected in sardinia, italy. fifteen ticks were pcr-positive using glta-specific and ompa-specific primers, leading to the identification of rickettsia aeschlimannii in hyalomma marginatum marginatum, r. massiliae in rhipicephalus turanicus and in rhipicephalus sanguineus, and a new rickettsia, previously referred to as potirb169 in portugal, in four rhipicephalus turanicus. this new species ... | 2008 | 19040474 |
| detection of rickettsia aeschlimannii in hyalomma marginatum ticks in western russia. | | 2009 | 19438620 |
| first detection of rickettsia aeschlimannii in hyalomma aegyptium from algeria. | | 2009 | 19548989 |
| rickettsia infection in dogs and rickettsia parkeri in amblyomma tigrinum ticks, cochabamba department, bolivia. | only few published data are available on ticks and tick-borne zoonotic pathogens in bolivia. to evaluate rickettsial seroprevalence and infection in dogs and ticks, during february-april 2007, we collected whole blood, sera, and ticks from dogs living in the rural, peri-urban, and urban areas of cochabamba, bolivia. dog sera were subjected to enzyme-linked immunosorbent assay test to detect igg antibodies against rickettsia rickettsii and 68.2% of samples were found to be positive (n = 30; 95% c ... | 2010 | 20426684 |
| tick-borne rickettsioses, neglected emerging diseases in rural senegal. | rickettsioses are one of the most important causes of systemic febrile illness among travelers from developed countries, but little is known about their incidence in indigenous populations, especially in west africa. | 2010 | 20856858 |
| rickettsia aeschlimannii in hyalomma marginatum ticks, germany. | | 2011 | 21291625 |
| spotted fever group rickettsiae in ticks in cyprus. | in two surveys conducted from march 1999 to march 2001 and from january 2004 to december 2006, a total of 3,950 ticks (belonging to ten different species) were collected from seven domestic and wild animals (goat, sheep, cattle, dog, fox, hare, and mouflon) from different localities throughout cyprus. in order to establish their infection rate with spotted fever rickettsiae (sfg), ticks were pooled and tested by polymerase chain reaction targeting glta and ompa genes, followed by sequencing anal ... | 2011 | 21833539 |
| spotted fever group rickettsiae in ticks collected from wild animals in israel. | we report molecular evidence for the presence of spotted fever group rickettsiae (sfgr) in ticks collected from roe deer, addax, red foxes, and wild boars in israel. rickettsia aeschlimannii was detected in hyalomma marginatum and hyalomma detritum while rickettsia massiliae was present in rhipicephalus turanicus ticks. furthermore, a novel uncultured sfgr was detected in haemaphysalis adleri and haemaphysalis parva ticks from golden jackals. the pathogenicity of the novel sfgr for humans is unk ... | 2011 | 22049050 |
| spotted fever rickettsia species in hyalomma and ixodes ticks infesting migratory birds in the european mediterranean area. | a few billion birds migrate annually between their breeding grounds in europe and their wintering grounds in africa. many bird species are tick-infested, and as a result of their innate migratory behavior, they contribute significantly to the geographic distribution of pathogens, including spotted fever rickettsiae. the aim of the present study was to characterize, in samples from two consecutive years, the potential role of migrant birds captured in europe as disseminators of rickettsia-infecte ... | 2014 | 25011617 |
| detection of microbial agents in ticks collected from migratory birds in central italy. | tick species characterization and molecular studies were performed within ornithological surveys conducted during 2010 and 2011 in the lazio region of central italy. a total of 137 ticks were collected from 41 migratory birds belonging to 17 species (four partial migrants and 13 long-distance migrants). most ticks were nymphs, with a predominance of hyalomma marginatum marginatum and h. m. rufipes, and a small portion of ixodes and amblyomma species. all tick species analyzed were infected, and ... | 2014 | 24576218 |
| multiple pathogens including potential new species in tick vectors in côte d'ivoire. | our study aimed to assess the presence of different pathogens in ticks collected in two regions in côte d'ivoire. | 2016 | 26771308 |
| draft genome sequence of rickettsia aeschlimannii, associated with hyalomma marginatum ticks. | rickettsia aeschlimannii is a tick-associated human pathogen. we report here the draft genome of r. aeschlimannii strain mc16, isolated from hyalomma marginatum marginatum ticks collected in morocco. | 2014 | 25059861 |
| the first detection of rickettsia aeschlimannii and rickettsia massiliae in rhipicephalus turanicus ticks, in northwest china. | rickettsia spp. belonging to the spotted fever group (sfg) cause infections in humans, domestic animals and wildlife. at least five sfg rickettsial species have been reported in china, but the occurrence of rickettsia aeschlimannii and r. massiliae in ticks has not been characterized to date. | 2015 | 26652857 |
| rickettsia aeschlimannii infection in a man, greece. | | 0 | 23764167 |
| tick-borne pathogens of potential zoonotic importance in the southern african region. | the aim of this communication is to provide preliminary information on the tick-borne pathogens of potential zoonotic importance present in southern africa, mainly focusing on their geographical distribution and host range, and to identify research gaps. the following tick-borne zoonoses have been reported to occur in southern africa based mainly on case reports: crimean-congo haemorrhagic fever caused by crimean-congo haemorrhagic fever virus; ehrlichiosis caused by ehrlichia ruminantium, ehrli ... | 2014 | 25685942 |
| synanthropic birds associated with high prevalence of tick-borne rickettsiae and with the first detection of rickettsia aeschlimannii in hungary. | the aim of this study was to analyze synanthropic birds as risk factors for introducing ticks and tick-borne pathogens into human settlements, with an emphasis on rickettsiae. altogether 184 subadult ticks were found on 5846 birds. tick infestation was most prevalent during the spring. in this sample group the majority of ticks were molecularly identified as ixodes ricinus, and three individuals collected from the european robin as hyalomma marginatum marginatum. the latter is the first molecula ... | 2013 | 23289394 |
| ticks and tick-borne pathogens in wild birds in greece. | wild birds are common hosts of ticks and can transport them for long distances, contributing to the spreading of tick-borne pathogens. the information about ticks on birds and tick-borne pathogens in greece is limited. the present study aimed to evaluate the prevalence and species of ticks infesting wild resident birds (mostly small passerines) in greece, and to assess borrelia and rickettsia infection in the collected ticks. detection of borrelia burgdorferi s.l. was performed by nested pcr tar ... | 2016 | 26847630 |
| lyme borreliosis spirochetes and spotted fever group rickettsiae in ixodid ticks from pianosa island, tuscany archipelago, italy. | a study on tick fauna and tick-borne pathogens was undertaken in pianosa, an island in the tuscany archipelago that constitutes an important stopping and nesting point for migratory birds. ticks were removed from feral cats and a few terrestrial birds, and host-seeking ticks were collected by dragging. a total of 89 ticks were found on animals: 57 ixodes ventalloi gil collado, 1936 and 32 ixodes acuminatus neumann, 1901. host-seeking ticks were 354 hyalomma spp. larvae and 18 hyalomma spp. adult ... | 2013 | 23289398 |
| molecular analysis of crimean-congo hemorrhagic fever virus and rickettsia in hyalomma marginatum ticks removed from patients (spain) and birds (spain and morocco), 2009-2015. | crimean-congo hemorrhagic fever virus (cchfv) was detected in spain in 2010. the presence of cchfv in hyalomma marginatum ticks from migratory birds passing through morocco during the spring migration strengthened the hypothesis of the arrival of infected ticks transported by birds to the iberian peninsula. furthermore, hyalomma species are vectors of bacterial infections such as spotted fever rickettsioses. cchfv and rickettsia were screened in hyalomma ticks from spain attached to patients (n= ... | 2016 | 27215620 |
| detection of rickettsia hoogstraalii, rickettsia helvetica, rickettsia massiliae, rickettsia slovaca and rickettsia aeschlimannii in ticks from sardinia, italy. | tick-borne diseases represent a large proportion of infectious diseases that have become a world health concern. the presence of rickettsia spp. was evaluated by standard pcr and sequencing in 123 ticks collected from several mammals and vegetation in sardinia, italy. this study provides the first evidence of the presence of rickettsia hoogstralii in haemaphysalis punctata and haemaphysalis sulcata ticks from mouflon and rickettsia helvetica in ixodes festai ticks from hedgehog. in addition, ric ... | 2017 | 28110915 |
| the detection of spotted fever group rickettsia dna in tick samples from pastoral communities in kenya. | in this study, ticks from pastoral communities in kenya were tested for rickettsia spp. infections in geographical regions where the presence of tick-borne arboviruses had previously been reported. rickettsial and arbovirus infections have similar clinical features which makes differential diagnosis challenging when both diseases occur. the tick samples were tested for rickettsia spp. by conventional pcr using three primer sets targeting the glta, ompa, and ompb genes followed by amplicon sequen ... | 2017 | 28073909 |
| rickettsiae and rickettsial diseases in croatia: implications for travel medicine. | to review the current state of knowledge concerning rickettsiae and rickettsioses in croatia and to discuss their implications for travellers. | 2017 | 27404664 |
| detection of rickettsia aeschlimannii and rickettsia africae in ixodid ticks from burkina faso and somali region of ethiopia by new real-time pcr assays. | in the framework of cooperation for development projects in burkina faso and ethiopia, we collected ixodid ticks from cattle, small ruminants and camels. we optimized new taqman probe real-time pcr assays to detect rickettsia aeschlimannii and rickettsia africae ompa gene in the collected samples. rickettsia africae was identified in 75.0% amblyomma variegatum (95%ci: 56.6-88.5), while r. aeschlimannii in 24.0% hyalomma truncatum (95%ci: 9.4-45.1) and 50.0% h. rufipes (95%ci: 29.9-70.0) collecte ... | 2016 | 27641952 |
| human rickettsia aeschlimannii infection: first case with acute hepatitis and review of the literature. | rickettsia conorii is responsible for the mediterranean spotted fever. recently, new rickettsial species have been recognized in europe and implicated in human diseases. clinical features often differ greatly from each other, but non-severe liver involvement is frequently observed during any rickettsial infection. | 2016 | 27383315 |
| molecular detection and characterization of spotted fever group rickettsiae in ticks from central italy. | the aim of this study was to investigate the presence of rickettsial pathogens in ticks from central italy. a total of 113 ticks hailed from latium and tuscany regions were identified and tested by pcr to detect glta, ompa, ompb genes of rickettsia. positive amplicons were sequenced and identified at species level. ticks were analyzed individually or in pools. the percentage of positivity for sfg rickettsiae was 12.4%, expressed as minimum infection rate (mir) assuming that one tick was positive ... | 2016 | 27365155 |
| molecular detection of spotted fever group rickettsiae in ticks removed from humans in turkey. | a total of 229 attached hard ticks were collected from humans in yozgat province (turkey) in 2009. all ticks were individually examined for the presence of spotted fever group (sfg) rickettsiae using the polymerase chain reaction (pcr) targeting rickettsial citrate synthase (glta) and outer membrane protein (ompa) genes. rickettsial dna was detected in 24 (10.5%) tick samples belonging to dermacentor marginatus (sulzer) (9 males, 3 females), hyalomma marginatum koch (8 males, 2 females) and haem ... | 2016 | 27131413 |
| molecular detection and groel typing of rickettsia aeschlimannii in sardinian ticks. | rickettsia aeschlimannii is an emerging tick-borne pathogen of the spotted fever group rickettsiae with considerable impact on both human and animal health. this study reports the molecular detection and groel characterization of r. aeschlimannii in ticks collected from birds and ruminants in a typical mediterranean environment. phylogeny of r. aeschlimannii and species representative of the spotted fever and typhus groups based on the groel gene is reconstructed for the first time. results expa ... | 2016 | 27130322 |
| characterization of spotted fever group rickettsiae in ticks from a city park of rome, italy. | ticks are vectors and important reservoirs for microbial agents that cause disease in humans and animals. among these pathogens, the members of rickettsia species play an important role in public health. | 2015 | 26783214 |
| rickettsioses in europe. | bacteria of the genera rickettsia and orientia (family rickettsiaceae, order rickettsiales) cause rickettsioses worldwide, and are transmitted by lice, fleas, ticks and mites. in europe, only rickettsia spp. cause rickettsioses. with improvement of hygiene, the risk of louse-borne rickettsiosis (epidemic typhus) is low in europe. nevertheless, recrudescent form of rickettsia prowazekii infection persists. there could be an epidemic typhus outbreak if a body lice epidemic occurs under unfavorable ... | 2016 | 26384814 |
| molecular detection of rickettsia aeschlimannii in hyalomma spp. ticks from camels (camelus dromedarius) in nigeria, west africa. | several species of the spotted fever group rickettsiae have been identified as emerging pathogens throughout the world, including in africa. in this study, 197 hyalomma ticks (ixodida: ixodidae) collected from 51 camels (camelus dromedarius) in kano, northern nigeria, were screened by amplification and sequencing of the citrate synthase (glta), outer membrane protein a (ompa) and 17-kda antigen gene fragments. rickettsia sp. glta fragments were detected in 43.3% (42/97) of the tick pools tested. ... | 2015 | 25565180 |
| identification of rickettsial pathogens in ixodid ticks in northern senegal. | the spotted fevers, caused by the rickettsia bacteria, are a group of emerging diseases that are responsible for significant human morbidity. in africa, the distribution of different species of rickettsia in their tick vectors is poorly studied. we have collected 1169 hard ticks from 5 different species in the northern senegal, close to the saharan border. in a far northern collection site, corresponding to the rickettsia africae distribution area, we collected three amblyomma variegatum ticks i ... | 2014 | 24908548 |
| molecular detection of rickettsia africae, rickettsia aeschlimannii, and rickettsia sibirica mongolitimonae in camels and hyalomma spp. ticks from israel. | in this study, we aimed to identify and genetically characterize spotted fever group (sfg) rickettsiae in ticks, domestic one-humped camels, and horses from farms and bedouin communities in southern israel. a total of 618 ixodid ticks (hyalomma dromedarii, hyalomma turanicum, hyalomma excavatum, and hyalomma impeltatum) collected from camels and horses, as well as 152 blood samples from 148 camels and four horses were included in the study. initial screening for rickettsiae was carried out by ta ... | 2013 | 24107206 |
| zoonotic surveillance for rickettsiae in domestic animals in kenya. | abstract rickettsiae are obligate intracellular bacteria that cause zoonotic and human diseases. arthropod vectors, such as fleas, mites, ticks, and lice, transmit rickettsiae to vertebrates during blood meals. in humans, the disease can be life threatening. this study was conducted amidst rising reports of rickettsioses among travelers to kenya. ticks and whole blood were collected from domestic animals presented for slaughter at major slaughterhouses in nairobi and mombasa that receive animals ... | 2013 | 23477290 |
| first detection of rickettsia aeschlimannii in hyalomma dromedarii ticks from tunisia. | tick-borne rickettsioses have long been described in north africa. these human diseases and their causative agents occur in several countries in this region, including mauritania, morocco, algeria, tunisia, libya, and egypt. in tunisia, the first described and most well-known rickettsiosis is mediterranean spotted fever, which is caused by rickettsia conorii conorii. cases of r. aeschlimannii infections have been documented by serology, but the agent has never actually been detected in patients ... | 2012 | 23182544 |
| development of three quantitative real-time pcr assays for the detection of rickettsia raoultii, rickettsia slovaca, and rickettsia aeschlimannii and their validation with ticks from the country of georgia and the republic of azerbaijan. | a previous surveillance study of human pathogens within ticks collected in the country of georgia showed a relatively high infection rate for rickettsia raoultii, r. slovaca, and r. aeschlimannii. these 3 spotted fever group rickettsiae are human pathogens: r. raoultii and r. slovaca cause tick-borne lymphadenopathy (tibola), and r. aeschlimannii causes an infection characterized by fever and maculopapular rash. three quantitative real-time polymerase chain reaction (qpcr) assays, rraoul, rslov, ... | 2012 | 23182543 |
| tick-borne rickettsioses in europe. | rickettsioses are caused by obligate intracellular bacteria within the genus rickettsia, mainly transmitted by arthropods. until recently, mediterranean spotted fever (msf) caused by rickettsia conorii was considered the only tick-borne rickettsiosis in europe. however, 'new' tbr have been described in europe during last years. for instance, other subspecies such as r. conorii caspia and r. conorii israelensis have been involved in msf. dermacentor-borne necrosis erythema and lymphadenopathy/tic ... | 2012 | 23177355 |
| the first molecular detection of rickettsia aeschlimannii in the ticks of camels from southern algeria. | we collected ticks from camels in 4 regions of southern algeria (el oued, bechar, ghardia, and adrar) from february to october in 2008 and in april of 2011. a total of 307 ticks representing multiple species (including hyalomma dromedarii, h. marginatum rufipes, h. impeltatum, and h. impressum), was tested for the presence of spotted fever group rickettsia dna using glta real-time quantitative pcr (qpcr). the presence of rickettsia aeschlimannii was confirmed with a new qpcr using species-specif ... | 2012 | 23168055 |
| rickettsia slovaca from dermacentor marginatus ticks in sardinia, italy. | nineteen ticks belonging to the species dermacentor marginatus, rhipicephalus bursa, and haemaphysalis sulcata were collected from wild animals (wild boar, deer, and mouflon) in south-western sardinia, italy. five d. marginatus ticks from wild boar were pcr-positive when analyzed using glta-specific and ompa-specific primers, leading to the identification and first isolation in cell culture of rickettsia slovaca, the causative agent of tick-borne lymphadenopathy (tibola), on the island of sardin ... | 2012 | 23140897 |
| molecular detection of tick-borne pathogen diversities in ticks from livestock and reptiles along the shores and adjacent islands of lake victoria and lake baringo, kenya. | although diverse tick-borne pathogens (tbps) are endemic to east africa, with recognized impact on human and livestock health, their diversity and specific interactions with tick and vertebrate host species remain poorly understood in the region. in particular, the role of reptiles in tbp epidemiology remains unknown, despite having been implicated with tbps of livestock among exported tortoises and lizards. understanding tbp ecologies, and the potential role of common reptiles, is critical for ... | 2017 | 28620610 |
| a retrospective study of the characterization of rickettsia species in ticks collected from humans. | rickettsiae (family rickettsiaceae, order rickettsiales) are obligate intracellular bacteria transmitted by arthropod vectors. several rickettsia species causing vector-borne rickettsioses belong to the spotted fever group (sfg). traditionally, rickettsia conorii has been considered as the main etiologic agent of mediterranean spotted fever. however, the molecular characterization of rickettsiae allowed identifying other species involved in spotted fever in the mediterranean region. in this stud ... | 2017 | 28457821 |