Abstract：
:Rickettsial pathogens cause diseases that vary in severity and clinical presentation. Rickettsia species transmitted by ticks are mostly classified within the spotted fever group of rickettsiae (SFGR) and are often associated with febrile diseases. Preliminary studies have detected three human-pathogenic SFGR from ticks in Georgia: Rickettsia aeschlimannii, Rickettsia raoultii, and Rickettsia slovaca. To more broadly assess the presence of tick-borne rickettsiae from Georgia we examined 1594 ticks, representing 18 species from five genera (Ixodes, Hyalomma, Haemaphysalis, Dermacentor, and Rhipicephalus), collected from eight regions of Georgia. A total of 498 tick DNA samples extracted from single ticks or pooled ticks were assessed by molecular methods. Genus-specific Rick17b and species-specific qPCR assays were used to identify six rickettsiae: R. aeschlimannii, R. raoultii, R. slovaca, Rickettsia conorii subsp. conorii, Rickettsia massiliae, and Rickettsia monacensis. Tick samples that were positive for Rickettsia, but not identified by the species-specific assays, were further evaluated by multi-locus sequence typing (MLST) using sequences of four protein-coding genes (gltA, ompA,ompB, sca4). Three additional Rickettsia species were identified by MLST: Candidatus Rickettsia barbariae, Rickettsia helvetica, and Rickettsia hoogstraalii. Overall, nine species of Rickettsia (six human pathogens and three species with unknown pathogenicity) were detected from 12 tick species of five different genera. A distribution map for the tick-borne rickettsiae revealed six newly identified endemic regions in Georgia.
journal_name
Ticks Tick Borne Disjournal_title
Ticks and tick-borne diseasesauthors
Sukhiashvili R,Zhgenti E,Khmaladze E,Burjanadze I,Imnadze P,Jiang J,St John H,Farris CM,Gallagher T,Obiso RJ,Richards ALdoi
10.1016/j.ttbdis.2020.101470subject
Has Abstractpub_date
2020-09-01 00:00:00pages
101470issue
5eissn
1877-959Xissn
1877-9603pii
S1877-959X(17)30352-7journal_volume
11pub_type
杂志文章abstract：:Kemerovo virus (KEMV) is a member of the Great Island virus genetic group, belonging to the tick-borne arboviruses of the genus Orbivirus within the family Reoviridae. Nine strains of KEMV, which were isolated from various locations in Russia, were sequenced by high-throughput sequencing to study their intraspecific d...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2019.101333
更新日期：2020-03-01 00:00:00
abstract：:A total of 705 rodents from Myodes, Microtus, and Apodemus genera, 396 adult questing Ixodes persulcatus, and 115 Ixodes larvae and nymphs taken from rodents (and then molted under laboratory conditions to nymphs and adults) were collected in 2013-2018 in Omsk province, Russian Siberia, and examined for the presence o...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2020.101499
更新日期：2020-09-01 00:00:00
abstract：:Amblyomma rotundatum is an ixodid tick strictly associated with cold-blooded animals, among them the toad Rhinella jimi. This work aimed to evaluate the seasonal dynamics of larvae, nymphs, and adults of A. rotundatum parasitizing R. jimi in an area within the semi-arid Caatinga Biome of northeastern Brazil. Monthly s...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2018.06.005
更新日期：2018-07-01 00:00:00
abstract：:Due to the ongoing expansion of Ixodes scapularis (blacklegged tick) throughout the northeastern and midwestern United States, there is need to identify the role wildlife hosts play in the establishment and maintenance of tick populations. To quantify and synthesize the patterns of I. scapularis and Borrelia burgdorfe...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.ttbdis.2018.04.006
更新日期：2018-07-01 00:00:00
abstract：:This study is the first report about the prevalence of tick-borne pathogens, as well as their (co-)infection rates, in the museum-archived I. ricinus female ticks collected in Moldova in 1960. A total of 16.7% (21/126) ticks was mono-infected. Borrelia burgdorferi sensu stricto was revealed as the most abundant specie...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2012.12.004
更新日期：2013-06-01 00:00:00
abstract：:Ticks collected from mustelids from four counties in Maine and one in New Hampshire were identified after harvest. Of the 18 fishers Martes pennanti Erxleben, two mink Neovison vison Schreber, and one long-tailed weasel Mustela frenata Lichtenstein, 589 ticks were collected and identified. They were identified as, in ...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2014.02.001
更新日期：2014-06-01 00:00:00
abstract：:There are 4 major human-biting tick species in the northeastern United States, which include: Amblyomma americanum, Amblyomma maculatum, Dermacentor variabilis, and Ixodes scapularis. The black bear is a large mammal that has been shown to be parasitized by all the aforementioned ticks. We investigated the bacterial i...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2012.12.002
更新日期：2013-04-01 00:00:00
abstract：:Previous studies revealed that the Pacific Coast tick (Dermacentor occidentalis) is infected occasionally with the agents of Lyme disease (Borrelia burgdorferi) or human granulocytic anaplasmosis (Anaplasma phagocytophilum) and that it is an inefficient experimental vector of B. burgdorferi. The relationship of the pa...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2010.09.004
更新日期：2010-12-01 00:00:00
abstract：:Rhipicephalus microplus and Rhipicephalus decoloratus species occur in regions with savannah and temperate climates, typically in grassland and wooded areas used as cattle pasture. Both species are associated with the transmission of Anaplasma and Babesia spp., impacting livestock health and quality of livestock-assoc...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2016.01.007
更新日期：2016-06-01 00:00:00
abstract：:Ixodes affinis Neumann (1899) and Ixodes scapularis Say (1821) are tick vectors of the etiologic agent of Lyme disease, Borrelia burgdorferi sensu stricto. Ixodes affinis and I. scapularis are morphologically very similar, and as they are sympatric in the mid- and south-Atlantic U.S. coastal states, their accurate ide...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2013.08.003
更新日期：2014-02-01 00:00:00
abstract：:A total of 7364 ticks belonging to 13 species was collected from 64 game animals (belonging to 11 species) and from 64 livestock animals (cattle and sheep) living in close vicinity at 6 localities in 3 South African Provinces (Free State, Mpumalanga, and Limpopo). The geographic distribution of all tick species was co...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2013.10.003
更新日期：2014-03-01 00:00:00
abstract：:Canine vector borne diseases include a variety of illnesses affecting domestic dogs worldwide. Clinical abnormalities are often nonspecific during rickettsial infections, and coinfections caused by other tick-transmitted agents may be common. The aim of this study was to validate a differential serological assay for t...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2012.10.024
更新日期：2012-12-01 00:00:00
abstract：:Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum are two tick-borne pathogens of medical and/or veterinary importance which are distributed worldwide. Erinaceus roumanicus, the Northern white-breasted hedgehog, is a common synanthropic species that is known to carry not only the hedgehog tick, Ixodes hexa...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2012.11.010
更新日期：2013-04-01 00:00:00
abstract：:Brazilian spotted fever (BSF) is the deadliest rickettsiosis in the world. Although the epidemiology of the disease has been established in Brazil, there are still limited data available on distribution of tick vectors and tick species parasitizing humans in the country, particularly in Paraná State. The State of Para...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2020.101510
更新日期：2020-11-01 00:00:00
abstract：:Rickettsia parkei is the etiological agent of spotted fever in Uruguay, where is transmitted to humans by the tick Amblyomma triste. In the present study, ticks were collected from capybaras (Hydrochoerus hydrochaeris) and domestic dogs during 2011-2012 in different parts of Uruguay. Three out of 11 (27.3%) Amblyomma ...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2014.04.021
更新日期：2014-10-01 00:00:00
abstract：:Ticks were collected from wild birds at 3 locations in Paraguay during the South American winter in August and September 2012. In total, 480 birds belonging to 106 species were examined. Overall, 31 (6.5%) birds representing 21 species were found parasitized by ticks which were identified as Amblyomma calcaratum Neuma...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2013.08.004
更新日期：2014-03-01 00:00:00
abstract：:This study investigated the first outbreak of oriental theileriosis in a herd of beef cattle in South Australia using a newly established multiplexed tandem PCR (MT-PCR) to identify, differentiate and quantitate the four genotypes (buffeli, chitose, ikeda and type 5) of Theileria orientalis recognised to occur in Aust...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2015.04.012
更新日期：2015-07-01 00:00:00
abstract：:Ticks and tick-borne disease (TBD) are major challenges to cattle production in the tropics and subtropics. Economic losses associated with ticks amount to billions of dollars annually. Although efforts to eradicate ticks and TBD using chemical control strategies have been implemented in many developing countries for ...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章,评审
doi：10.1016/j.ttbdis.2014.04.006
更新日期：2014-09-01 00:00:00
abstract：:The genus Amblyomma is the most diverse and relevant among the Neotropical ticks. In Panama, this genus contains 19 species, including Amblyomma ovale. There is a lack of knowledge of the ecology of A. ovale in Panama, and thus the aim of this work is to report on its geographical distribution and its spectrum of vert...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2012.09.002
更新日期：2013-02-01 00:00:00
abstract：:Rickettsia amblyommatis is widely distributed in the Americas, and has been reported to infect different species of ticks within its distribution. In Panama, R. amblyommatis is the most common Rickettsia and its presence was molecularly detected in nine species of ticks and one flea species. This work described the is...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2020.101597
更新日期：2021-01-01 00:00:00
abstract：:Seasonal activity patterns of questing western black-legged ticks, Ixodes pacificus were investigated in northwestern California. Adult I. pacificus became active in the fall (late October/early November) and their appearance was associated with the first rain of the season. Following a peak in January, the abundance ...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2014.05.002
更新日期：2014-10-01 00:00:00
abstract：:In this study, we examine the current pattern of tick diversity and host use in French Guiana, South America, from 97 sampling localities encompassing peri-urban, rural and natural habitats. We collected 3395 ticks, including 1485 specimens from 45 vertebrate species (humans, domestic and wild animals) and 1910 questi...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2018.09.003
更新日期：2019-01-01 00:00:00
abstract：:Cervid babesiosis, caused by the protozoan hemoparasite Babesia odocoilei and transmitted by the blacklegged tick Ixodes scapularis, is an emerging disease of Canadian cervids. This pathogen has not yet been described in humans. Data are lacking on the role of migratory birds in the adventitious spread of Ba. odocoile...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2019.02.016
更新日期：2019-04-01 00:00:00
abstract：:The aim of this study was to describe the dynamics of the long-legged bat tick Ixodes vespertilionis infestation on the lesser horseshoe bat Rhinolophus hipposideros in 2 nursery colonies roosting in attics. Out of a total of 810 lesser horseshoe bats examined, 217 (26.8%) were found to be infested with a total of 464...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2013.08.006
更新日期：2014-02-01 00:00:00
abstract：:Equine piroplasmosis (EP) is an important tick-borne disease of equids, caused by Theileria equi and Babesia caballi. It is endemic in most parts of the world, including Israel, and has clinical and economic consequences. This study was set to evaluate the presence of EP parasites in domestic donkeys and in wild equid...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2019.101286
更新日期：2020-01-01 00:00:00
abstract：:Basic knowledge of species, ecological preferences and behavior of ticks in preserved rainforests are scanty. We herein describe species richness, seasonal activity, altitude influence and questing height of ticks along 3375 m of animal trails within the largest remain of inland Atlantic rainforest in Brazil, the Igua...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2020.101471
更新日期：2020-09-01 00:00:00
abstract：:Coxiella burnetii is the causative agent of Q fever. In order to explore the occurrence of C. burnetii in ticks, samples were collected from horses, dogs and humans living in a Cuban occidental community. The species most commonly recovered were Amblyomma mixtum (67%), Rhipicephalus sanguineus s.l. (27%) and Dermacent...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2015.08.008
更新日期：2016-02-01 00:00:00
abstract：:Vector-borne pathogens are transmitted between vertebrate hosts and arthropod vectors, two immensely different environments for the pathogen. There is further differentiation among vertebrate hosts that often have complex, species-specific immunological responses to the pathogen. All this presents a heterogeneous envi...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2015.03.011
更新日期：2015-04-01 00:00:00
abstract：:In the present study, the presence of tick-associated bacteria and protozoa in Ornithodoros rostratus ticks (adults, nymphs, and eggs) from the Pantanal region of Brazil were determined by molecular detection. In these ticks, DNA from protozoa in the genera Babesia and Hepatozoon, and bacteria from the genera Ricketts...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2012.02.003
更新日期：2012-09-01 00:00:00
abstract：:Tick bites often go unnoticed, so specific reliable tests are needed to confirm them for prompt diagnosis and treatment of tick-borne diseases. One of the promising candidates for developing such a test is AV422, a tick saliva protein that has been conserved across tick genera. In this study, we demonstrate the potent...
journal_title：Ticks and tick-borne diseases
pub_type： 杂志文章
doi：10.1016/j.ttbdis.2017.01.001
更新日期：2017-03-01 00:00:00
