First detection of TBE virus in ticks and sero-reactivity in goats in a non-endemic region in the southern part of Switzerland (Canton of Ticino)
In conclusion, our data show for the first time the presence of TBEV in ticks and the related sero-reactivity in goats, confirming the presence of TBEV in the environment of the Canton of Ticino. Further surveillance studies will have to be conducted to follow the persistence of TBEV in this region. (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - April 19, 2019 Category: Zoology Source Type: research

Detection of tick-borne encephalitis virus antibodies in sera of sheep and goats in Mecklenburg-Western Pomerania (north-eastern Germany)
Publication date: Available online 14 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Silvius Frimmel, Micha Löbermann, Frerk Feldhusen, Matthias Seelmann, Karin Stiasny, Jochen Süss, Emil Christian Reisinger (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - April 18, 2019 Category: Zoology Source Type: research

Evaluation of rickettsial infection in free-range capybaras (Hydrochoerus hydrochaeris Linneaus, 1766) (Rodentia: Caviidae) and ticks (Acari: Ixodidae) in Western Amazon, Brazil
Publication date: Available online 16 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Karla Dayane Gruhn, Maria Ogrzewalska, Tatiana Rozental, Itacir Olivio Farikoski, Carolina Blanco, Lucas de Souza Freitas, Elba Regina Sampaio de Lemos, Vânia Maria França RibeiroAbstractCapybaras (Hydrochoerus hydrochaeris Linneaus, 1766) (Rodentia: Caviidae) are important hosts for Amblyomma ticks (Acari: Ixodidae), which in turn can transmit rickettsiae to humans and animals. However, there is a scarcity of studies about ticks fauna and rickettsial infection in the Amazon region. The present study evaluated ricke...
Source: Ticks and Tick borne Diseases - April 18, 2019 Category: Zoology Source Type: research

Rickettsia species in ticks that parasitize amphibians and reptiles: Novel report from Mexico and review of the worldwide record
Publication date: Available online 17 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Sokani Sánchez-Montes, Ana Belem Isaak-Delgado, Carmen Guzmán-Cornejo, Emilio Rendón-Franco, Claudia I. Muñoz-García, Sergio Bermúdez, Jorge Morales-Diaz, Anabel Cruz-Romero, Dora Romero-Salas, Karla Dzul-Rosado, César Lugo-Caballero, Pablo Colunga-Salas, Ingeborg BeckerAbstractTicks are obligate haematophagous ectoparasites that are associated with a wide range of vertebrate hosts, among them also reptiles and amphibians. They have dynamic ecological interactions with multiple mi...
Source: Ticks and Tick borne Diseases - April 18, 2019 Category: Zoology Source Type: research

Predicting spatiotemporal patterns of Lyme disease incidence from passively collected surveillance data for Borrelia burgdorferi sensu lato-infected Ixodes scapularis ticks
Publication date: Available online 18 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Eliza A.H. Little, John F. Anderson, Kirby C. Stafford, Lars Eisen, Rebecca J. Eisen, Goudarz MolaeiAbstractLyme disease is the most prevalent vector-borne disease in the United States. Ixodes scapularis, commonly referred to as the blacklegged tick, is the primary vector of Lyme disease spirochetes, Borrelia burgdorferi sensu lato (s.l.), in the eastern United States. Connecticut has pervasive populations of I. scapularis and remains a hotspot for Lyme disease. A primary aim of this study was to determine if passively collected...
Source: Ticks and Tick borne Diseases - April 18, 2019 Category: Zoology Source Type: research

Genetic characterization of tick-borne pathogens in ticks infesting cattle and sheep from three South African provinces
This study used PCR and sequencing to confirm the identity of the tick species collected from cattle and sheep from KwaZulu-Natal, Free State and Eastern Cape. Furthermore, presence of Babesia spp., Theileria spp., Anaplasma marginale, Rickettsia spp., Ehrlichia ruminantium and Coxiella burnetii was detected from tick DNA using species-specific PCR or nested PCRs. The study samples consisted of 390 adult ticks (male and female) which were pooled according to species, host animal and sampling site (three ticks per pool) for DNA extraction. The PCR results revealed that out of 130 tick DNA pools, 30 (23.1%) were positive for...
Source: Ticks and Tick borne Diseases - April 16, 2019 Category: Zoology Source Type: research

Microbiome analysis of Ixodes scapularis ticks from New York and Connecticut
This study provides insight into the microbial diversity of I. scapularis in New York State and Connecticut. (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - April 16, 2019 Category: Zoology Source Type: research

Probability of Rhipicephalus microplus introduction into farms by cattle movement using a Bayesian Belief Network
The objective of this study was to develop a probabilistic model based on a Bayesian Belief Network (BBN) to assess the likelihood of a farm becoming infested with R. microplus via the introduction of tick-infested cattle. Only the tick-infested area was considered in the development of this model. Nine variables related to environmental conditions and biosecurity measures, with a focus on cattle movement, were considered. Three different sources of data were used to populate the BBN model: data from the literature; a representative national survey from 2016; and a survey developed to identify biosecurity practices on farm...
Source: Ticks and Tick borne Diseases - April 15, 2019 Category: Zoology Source Type: research

Colonization and pathology of Borrelia afzelii in its natural hosts
Publication date: Available online 14 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Xiuqin Zhong, Mehrnaz Nouri, Lars RåbergAbstractStudies of Borrelia burgdorferi sensu lato in laboratory mice and humans have shown that spirochaetes disseminate from the site of infection (skin) to internal tissues, and cause various pathological effects. However, less is known about colonization and pathology of Lyme borreliosis spirochaetes in their natural hosts. In the present study, we assessed the colonization and manifestations during B. afzelii infection in reservoir hosts (yellow-necked mouse, Apodemus flavicolli...
Source: Ticks and Tick borne Diseases - April 15, 2019 Category: Zoology Source Type: research

Borrelia burgdorferi sensu lato and spotted fever group rickettsiae in small rodents and attached ticks in the Northern Apennines, Italy
Publication date: Available online 14 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Elisa Martello, Alessandro Mannelli, Elena Grego, Leonardo Adrian Ceballos, Charlotte Ragagli, Maria Cristina Stella, Laura TomassoneAbstractTicks and ear biopsies were collected from wild small rodents in 2011 and 2012 in the northern Apennines (Italy), up to 1650 m above sea level. Apodemus spp. (n = 83) and Myodes glareolus (n = 22) were infested by Ixodes ricinus (192 larvae and two nymphs), Dermacentor marginatus (179 larvae and 29 nymphs), and Ixodes trianguliceps (three larvae and two ny...
Source: Ticks and Tick borne Diseases - April 15, 2019 Category: Zoology Source Type: research

A Detection of tick-borne encephalitis virus antibodies in sera of sheep and goats in Mecklenburg-Western Pomerania (north-eastern Germany)
Publication date: Available online 14 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Silvius Frimmel, Micha Löbermann, Frerk Feldhusen, Matthias Seelmann, Karin Stiasny, Jochen Süss, Emil Christian Reisinger (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - April 15, 2019 Category: Zoology Source Type: research

Detected microorganisms and new geographic records of Ornithodoros rietcorreai (Acari: Argasidae) from northern Brazil
Publication date: Available online 10 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Sebastián Muñoz-Leal, Catarina Macedo, Teresa Cristina Gonçalves, Jairo Dias Barreira, Marcelo B. Labruna, Elba Regina Sampaio de Lemos, Maria OgrzewalskaAbstractReliable data on distributional ranges of soft ticks (Argasidae) and assessments of putative tick-borne agents enhance the understanding on tick-associated microorganisms. A total of 96 ticks morphologicaly and molecularly identified as Ornithodoros rietcorreai were collected in Tocantins State, Brazil, using Noireau traps with living bait as CO2 so...
Source: Ticks and Tick borne Diseases - April 11, 2019 Category: Zoology Source Type: research

Hard tick (Acari: Ixodidae) survey of Oleoducto trail, Soberania National Park, Panama
We examined 143 birds (30 species) and 59 mammals (10 species), of which 40 birds and 36 mammals had ticks. Site 1 presented the lowest number of species and also the lowest number of potential hosts. Artiodactyls were the most frequent mammals photographed in camera traps, and ticks that parasitize these animals were among the most abundant in sites 2-4. Of these, Haemaphysalis juxtakochi was the most abundant species. Differences among sites were consistent with the gradient of forest cover, disturbance along OT and distribution of potential hosts. (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - April 10, 2019 Category: Zoology Source Type: research

Endosymbionts carried by ticks feeding on dogs in spain
Publication date: Available online 6 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): A. Vila, A. Estrada-Peña, L. Altet, A. Cusco, S. Dandreano, O. Francino, L. Halos, X. RouraAbstractStudies on tick microbial communities historically focused on tick-borne pathogens. However, there is an increasing interest in capturing relationships among non-pathogenic endosymbionts and exploring their relevance for tick biology. The present study included a total of 1600 adult ticks collected from domestic dogs in 4 different biogeographical regions of Spain. Each pool formed by 1 to 10 halves of individuals representin...
Source: Ticks and Tick borne Diseases - April 7, 2019 Category: Zoology Source Type: research

Ixodes scapularis Src tyrosine kinase facilitates Anaplasma phagocytophilum survival in its arthropod vector
Publication date: Available online 6 April 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Jeremy W. Turck, Vikas Taank, Girish Neelakanta, Hameeda SultanaAbstractAnaplasma phagocytophilum, the agent of human anaplasmosis, is an obligate intracellular bacterium that uses multiple survival strategies to persist in Ixodes scapularis ticks. Our previous study showed that A. phagocytophilum efficiently induced the tyrosine phosphorylation of several Ixodes proteins that includes extended phosphorylation of actin at tyrosine residue Y178. In order to identify the tyrosine kinase responsible for the A. phagocytophilum induce...
Source: Ticks and Tick borne Diseases - April 7, 2019 Category: Zoology Source Type: research

Ehrlichia minasensis, an old demon with a new name
Publication date: Available online 27 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Alejandro Cabezas-Cruz, Erich Zweygarth, Daniel M Aguiar (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - March 29, 2019 Category: Zoology Source Type: research

Editorial Board
Publication date: April 2019Source: Ticks and Tick-borne Diseases, Volume 10, Issue 3Author(s): (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - March 27, 2019 Category: Zoology Source Type: research

First molecular detection and characterization of tick-borne pathogens in water buffaloes in Bohol, Philippines
This study was conducted to identify TBPs harbored by water buffaloes and to characterize these pathogens molecularly. One hundred water buffalo blood samples collected from three areas in Bohol, Visayas region, Philippines were screened for various TBPs using pathogen-specific PCR assays. TBPs were detected in 46% of the samples (39% singly infected, 7% coinfected). The pathogens detected were Anaplasma marginale (29%), Babesia bovis (21%), and B. bigemina (3%). None of the blood samples were positive for Theileria annulata, T. orientalis, and B. ovata. A. marginale infection rates were significantly higher (37.5%) among ...
Source: Ticks and Tick borne Diseases - March 24, 2019 Category: Zoology Source Type: research

Genetic diversity of Anaplasma marginale in beef cattle in the Brazilian Pantanal
The objective of this study was to evaluate the genetic diversity of A. marginale, based on the msp1α gene in Bos taurus indicus sampled from the Brazilian Pantanal. Aliquots of blood with and without EDTA were taken from 400 cattle (200 cows and 200 calves) across five extensive farms. The samples were submitted to the indirect immunoenzymatic assay (iELISA), quantitative real-time PCR (qPCR) for the msp1β gene and to the semi-nested (sn) PCR for the msp1α gene. Positive samples were sequenced by the Sanger method and subjected to diversity analysis using the RepeatAnalyser software. The percentage of pos...
Source: Ticks and Tick borne Diseases - March 23, 2019 Category: Zoology Source Type: research

Sublethal concentrations of acetylcarvacrol strongly impact oocyte development of engorged female cattle ticks Rhipicephalus microplus (Canestrini, 1888) (Acari: Ixodidae)
Publication date: Available online 16 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): I.F.M. Konig, R.R.P. Gonçalves, M.V.S. Oliveira, C.M. Silva, S.S. Thomasi, A.P. Peconick, R.N. RemedioAbstractRhipicephalus microplus, commonly known as southern cattle tick, causes huge economic losses in the cattle industry. Its infestation affects the production of meat and milk and causes discomfort to hosts. In addition, it is the vector of Babesia spp. and Anaplasma spp. The most frequent method used to control these parasites is through synthetic acaricides. However, their indiscriminate use can be toxic for hosts ...
Source: Ticks and Tick borne Diseases - March 21, 2019 Category: Zoology Source Type: research

Tissue localization of Coxiella-like endosymbionts in three European tick species through Fluorescence In Situ Hybridization
Publication date: Available online 19 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Marie Buysse, Olivier Plantard, Karen D. McCoy, Olivier Duron, Claudine MenardAbstractTicks are commonly infected by Coxiella-like endosymbionts (Coxiella-LE) which are thought to supply missing B vitamin nutrients required for blood digestion.While this nutritional symbiosis is essential for the survival and reproduction of infected tick species, our knowledge of where Coxiella-LE is localized in tick tissues is partial at best since previous studies have focused on a limited number of Asian or American tick species. To fill th...
Source: Ticks and Tick borne Diseases - March 21, 2019 Category: Zoology Source Type: research

Tick Gené’s organ engagement in lipid metabolism revealed by a combined transcriptomic and proteomic approach
Publication date: Available online 20 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Marina Amaral Xavier, Lucas Tirloni, Antonio F.M. Pinto, Jolene K. Diedrich, John R. Yates, Sergio Gonzales, Marisa Farber, Itabajara da Silva Vaz, Carlos TermignoniAbstractLipids play key roles in arthropod metabolism. In ticks, these biomolecules are transported from fat body to other organs, such as ovary and Gené’s organ. Gené’s organ, an apparatus found exclusively in female ticks, secretes a protective wax coat onto the egg surface, increasing egg viability in the environment due to waterproof, co...
Source: Ticks and Tick borne Diseases - March 21, 2019 Category: Zoology Source Type: research

Entomopathogenic nematodes in pharmaceutical formulations for Rhipicephalus microplus (Acari: Ixodidae) control: In vitro evaluation of compatibility, thermotolerance, and efficiency
Publication date: Available online 18 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Alessandra Ésther de Mendonça, Raiana Gonçalves Moreira, Maria da Penha Henriques do Amaral, Caio Márcio de Oliveira Monteiro, Valéria de Mello, Fernanda Maria Pinto Vilela, Fernanda Cristina Mendonça Homem, John Furlong, Cláudia Dolinski, Márcia Cristina de Azevedo Prata, Evelize Folly das ChagasAbstractThis work aimed to investigate candidate biological control agents against the cattle tick Rhipicephalus microplus by studying three entomopathogenic nematodes (EPN) isolat...
Source: Ticks and Tick borne Diseases - March 19, 2019 Category: Zoology Source Type: research

Sublethal concentrations of acetylcarvacrol strongly impacts oocyte development of engorged female cattle ticks Rhipicephalus microplus (Canestrini, 1888) (Acari: Ixodidae)
Publication date: Available online 16 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): I.F.M. Konig, R.R.P. Gonçalves, M.V.S. Oliveira, C.M. Silva, S.S. Thomasi, A.P. Peconick, R.N. RemedioAbstractRhipicephalus microplus, commonly known as southern cattle tick, causes huge economic losses in the cattle industry. Its infestation affects the production of meat and milk and causes discomfort to hosts. In addition, it is the vector of Babesia spp. and Anaplasma spp. The most frequent method used to control these parasites is through synthetic acaricides. However, their indiscriminate use can be toxic for hosts ...
Source: Ticks and Tick borne Diseases - March 18, 2019 Category: Zoology Source Type: research

Detection of a novel tick-borne flavivirus and its serological surveillance
In conclusion, YGV appears to be maintained primarily among wild boar and ticks in the western part of Japan. YGV is the second flavivirus (after Japanese encephalitis virus) shown to be circulating on Honshu Island in Japan. (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - March 18, 2019 Category: Zoology Source Type: research

Asian isolates of Anaplasma phagocytophilum: Multilocus sequence typing
Publication date: Available online 18 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Tatyana A. Mukhacheva, Daria R. Shaikhova, Sergey Y. KovalevAbstractAnaplasma phagocytophilum is the bacterial agent of granulocytic anaplasmosis in humans and animals; it is widely distributed in Eurasia and North America and transmitted mainly by Ixodes ticks. Several approaches have been used to study genetic diversity in A. phagocytophilum, multilocus sequence typing (MLST) currently being the most reliable and comparable. The MLST method based on seven housekeeping loci, 2877 bp total length, has been used to create and mai...
Source: Ticks and Tick borne Diseases - March 18, 2019 Category: Zoology Source Type: research

Mutations in Rhipicephalus microplus GABA gated chloride channel gene associated with fipronil resistance
The objective of the present study was to identify mutations in the GABA-Cl gene associated with fipronil resistance. Genomic DNA was obtained from engorged females from fipronil-susceptible and resistant populations sampled from Uruguay and Brazil (n = 166). Initially, it was searched the T290 L mutation described in Australia; however, this mutation was not detected in individuals from resistant populations from either country. The sequencing of a fragment of the GABA-Cl gene revealed nucleotide polymorphisms in fipronil- and lindane-resistant ticks in two populations from Uruguay and five from Brazi...
Source: Ticks and Tick borne Diseases - March 16, 2019 Category: Zoology Source Type: research

Host immunogenetics in tick-borne encephalitis virus infection—The CCR5 crossroad
Publication date: Available online 11 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Joel Henrique Ellwanger, José Artur Bogo ChiesAbstractThe human Tick-borne encephalitis virus (TBEV) infection is a complex event encompassing factors derived from the virus itself, the vectors, the final host, and the environment as well. Classically, genetic traits stand out among the human factors that modify the susceptibility and progression of infectious diseases. However, and although this is a changing scenario, studies evaluating the genetic factors that affect the susceptibility specifically to TBEV infection an...
Source: Ticks and Tick borne Diseases - March 15, 2019 Category: Zoology Source Type: research

Peri-urban black rats host a rich assembly of ticks and healthier rats have more ticks
In this study, we identified the species of ticks that parasitize R. rattus in a remnant bush area within Sydney, Australia. We then examined the relationship between ticks and R. rattus by testing several rat body characteristics as predictors of tick abundance. We show that larva and nymphs of five species of native Australian tick parasitize R. rattus in urban Australia. The most abundance species was Ixodes holocyclus, a tick of veterinary and human health concern. We found that ticks were more abundant on R. rattus in better condition, for larva and nymphs of I. holocyclus and I. tasmani. Rattus rattus supports a rich...
Source: Ticks and Tick borne Diseases - March 15, 2019 Category: Zoology Source Type: research

Host immunogenetics in Tick-borne encephalitis virus infection – The CCR5 crossroad
Publication date: Available online 11 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Joel Henrique Ellwanger, José Artur Bogo ChiesAbstractThe human Tick-borne encephalitis virus (TBEV) infection is a complex event encompassing factors derived from the virus itself, the vectors, the final host, and the environment as well. Classically, genetic traits stand out among the human factors that modify the susceptibility and progression of infectious diseases. However, and although this is a changing scenario, studies evaluating the genetic factors that affect the susceptibility specifically to TBEV infection an...
Source: Ticks and Tick borne Diseases - March 12, 2019 Category: Zoology Source Type: research

Co-infection with tick-borne disease agents in cattle in Russia
This study was conducted to determine the level of co-infection with protozoan pathogens (Theileria spp. and Babesia spp.) and rickettsial pathogens (A. marginale and A. phagocytophilum) in cattle in central Russia. Blood samples were examined with real time polymerase chain reaction (RT-PCR) for A. marginale and A. phagocytophilum, and by amplifying the V4 hypervariable region of the 18S rRNA gene, followed by cloning, DNA sequencing, and phylogenetic analyses, for Babesia and Theileria species. In total 67% of examined blood samples were positive for Theileria spp. or A. marginale, and 19% of the animals were co-infected...
Source: Ticks and Tick borne Diseases - March 10, 2019 Category: Zoology Source Type: research

Hyalomma rufipes on an untraveled horse: Is this the first evidence of Hyalomma nymphs successfully moulting in the United Kingdom?
Publication date: Available online 9 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Kayleigh M. Hansford, Daniel Carter, Emma L. Gillingham, Luis M. Hernandez-Triana, John Chamberlain, Benjamin Cull, Liz McGinley, L. Paul Phipps, Jolyon M. MedlockAbstractDuring September 2018, a tick was submitted to Public Health England’s Tick Surveillance Scheme for identification. The tick was sent from a veterinarian who removed it from a horse in Dorset, England, with no history of overseas travel. The tick was identified as a male Hyalomma rufipes using morphological and molecular methods and then tested for a range...
Source: Ticks and Tick borne Diseases - March 10, 2019 Category: Zoology Source Type: research

Assessment of equine piroplasmids in the Nhecolândia sub-region of Brazilian Pantanal wetland using serological, parasitological, molecular, and hematological approaches
The objective of this study was to compile some epidemiological features on equine piroplasmids from the Nhecolândia sub-region of Pantanal wetland through the evaluation of the patterns of T. equi and B. caballi infections in different groups of horses; identification of the tick species that infest horses; and to study phylogenetic relationships among Theileria equi 18S rRNA gene sequences. During October 2015, blood and serum samples were collected from 170 horses in four different categories. Ticks, after identification, had their hemolymph and eggs examined for the presence of piroplasmid sporokinets. Also we se...
Source: Ticks and Tick borne Diseases - March 10, 2019 Category: Zoology Source Type: research

Huge diversity of phleboviruses in ticks from Strandja Nature Park, Bulgaria
Publication date: Available online 5 March 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Valerie Ohlendorf, Marco Marklewitz, Anne Kopp, Stoyan Yordanov, Christian Drosten, Sandra JunglenAbstractThe discovery of the first tick-borne phleboviruses associated with severe disease in humans stimulated studies searching for further previously unknown tick-associated viruses. Novel phleboviruses have subsequently been identified in ticks from the USA, Japan and China and recently also from Europe. Here, we investigated the genetic diversity of tick-borne phleboviruses originating from Strandja Nature Park, Bulgaria, a uniq...
Source: Ticks and Tick borne Diseases - March 6, 2019 Category: Zoology Source Type: research

Mitochondrial genome analysis reveals intraspecific variation within Australian hard tick species
Publication date: Available online 26 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Delaney Burnard, Renfu ShaoAbstractTicks rank second in the world as vectors of disease so it is paramount we understand their biology in order to advance disease control. Mitochondrial genome sequences of tick species have been used increasingly to resolve relationships of closely related species, correct taxonomic discrepancies and to understand intraspecific variation. Despite this, our understanding and advances in tick biology are obstructed by the lack of complete mitochondrial genomes available for most species, partic...
Source: Ticks and Tick borne Diseases - February 27, 2019 Category: Zoology Source Type: research

Vertical transmission rates of Borrelia miyamotoi in Ixodes scapularis collected from white-tailed deer
Publication date: Available online 26 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Seungeun Han, Charles Lubelczyk, Graham J. Hickling, Alexia A. Belperron, Linda K. Bockenstedt, Jean I. TsaoAbstractBorrelia miyamotoi is a relapsing fever spirochete transmitted by ticks in the Ixodes ricinus complex. In the eastern United States, B. miyamotoi is transmitted by I. scapularis, which also vectors several other pathogens including B. burgdorferi sensu stricto. In contrast to Lyme borreliae, B. miyamotoi can be transmitted vertically from infected female ticks to their progeny. Therefore, in addition to nymphs a...
Source: Ticks and Tick borne Diseases - February 27, 2019 Category: Zoology Source Type: research

A minority of children diagnosed with Lyme disease recall a preceding tick bite
Publication date: Available online 26 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Lise E. Nigrovic, Desiree N. Neville, Fran Balamuth, Jonathan E. Bennett, Michael N. Levas, Aris C. Garro, for Pedi Lyme NetAbstractOf 1,770 children undergoing emergency department evaluation for Lyme disease, 362 (20.5%) children had Lyme disease. Of those with an available tick bite history, only a minority of those with Lyme disease had a recognized tick bite (60/325; 18.5%, 95% confidence interval 14.6 – 23.0%). Lack of a tick bite history does not reliably exclude Lyme disease. (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - February 27, 2019 Category: Zoology Source Type: research

Tick Distribution in border regions of Northwestern China
Publication date: Available online 26 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Jinliang Sheng, Mengmeng Jiang, Meihua Yang, Xinwen Bo, Shanshan Zhao, Yanyan Zhang, Hazihan Wureli, Baoju Wang, Changchun Tu, Yuanzhi WangAbstractTicks are important vectors of emerging and re-emerging pathogens. The aim of this study was to determine tick species occurring in Xinjiang Uygur Autonomous Region (XUAR), especially on border regions. A total of 22,994 ticks (including 22,629 adults, 365 larvae and nymphs), belonging to six tick genera (i.e. Dermacentor, Hyalomma, Rhipicephalus, Haemaphysalis, Ixodes and Argas) a...
Source: Ticks and Tick borne Diseases - February 27, 2019 Category: Zoology Source Type: research

Babesia odocoilei and zoonotic pathogens identified from Ixodes scapularis ticks in southern Ontario, Canada
Publication date: Available online 27 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Ellie L. Milnes, Grace Thornton, Alexandre N. Léveillé, Pauline Delnatte, John R. Barta, Dale A. Smith, Nicole NemethAbstractCervid 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. odocoilei-infected ticks, as well as on the infection status of I. scapularis in ...
Source: Ticks and Tick borne Diseases - February 27, 2019 Category: Zoology Source Type: research

Diversity of Anaplasma species in cattle in Mozambique
Publication date: Available online 26 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Simone de Jesus Fernandes, Carlos António Matos, Carla Roberta Freschi, Inalda Angélica de Souza Ramos, Rosangela Zacarias Machado, Marcos Rogério AndréAbstractAlthough species of Anaplasma are highly prevalent Rickettsiales agents in domestic and wild ruminants with a wide distribution worldwide, few studies have been conducted so far to detect and/or investigate the diversity of these agentsin cattle in Mozambique. In the present study, serological and molecular assays were used to investigate th...
Source: Ticks and Tick borne Diseases - February 26, 2019 Category: Zoology Source Type: research

Seroprevalence of severe fever with thrombocytopenia syndrome virus antibodies among inhabitants of Dachen Island, eastern China
In this study, we conducted a serum survey of SFTSV antibodies among inhabitants of the island. A total of 439 serum specimens were collected in June 2018. All serum samples were tested for total antibodies and IgM antibody with double-antigen sandwich ELISA method. The rates of seropositivity for SFTSV total antibodies and IgM antibody were 3.0% (95% CI 1.4-4.6) and 0.5% (2/439), respectively. The median age of all participants was 61 years and all seropositive samples were all from inhabitants aged>50 years. The differences of seroprevalence between different gender groups and different age groups were not significant...
Source: Ticks and Tick borne Diseases - February 23, 2019 Category: Zoology Source Type: research

Presentation of hemolytic and hemorrhagic rangeliosis in Cerdocyon thous
Publication date: Available online 22 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Bruna Copat, Paulo Vinicius Bastiani, Fernanda Catelari Jaconi, Wanderley Wallyson Damarem, André Felipe Streck, Eduardo Conceição de Oliveira, Luciana Sonne, Raqueli Teresinha FrançaAbstractRangeliosis, caused by protozoan Rangelia vitalii, is transmitted by the tick Amblyomma aureolatum. The disease is characterized by hemolytic and hemorrhagic disorder and has been described in dogs and other wild canids. The aim of this study was to compare clinicopathological findings and laboratory results of...
Source: Ticks and Tick borne Diseases - February 23, 2019 Category: Zoology Source Type: research

Isolation of known and potentially pathogenic tick-borne microorganisms from European ixodid ticks using tick cell lines
Publication date: Available online 19 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Ana M. Palomar, Shonnette Premchand-Branker, Pilar Alberdi, Oxana A. Belova, Anna Moniuszko-Malinowska, Olaf Kahl, Lesley Bell-SakyiAbstractTicks harbour and, in many cases transmit to their vertebrate hosts, a wide variety of pathogenic, apathogenic and endosymbiotic microorganisms. Recent molecular analyses have greatly increased the range of bacterial species potentially associated with ticks, but in most cases cannot distinguish between surface contaminants, microorganisms present in the remains of the previous blood meal...
Source: Ticks and Tick borne Diseases - February 20, 2019 Category: Zoology Source Type: research

Identification of a non-host semiochemical from tick-resistant donkeys (Equus asinus) against Amblyomma sculptum ticks
In this study, we tested the hypothesis that donkeys produce natural repellents against A. sculptum, by collecting sebum from donkeys and horses, collecting the odour from sebum extracts, and identifying donkey-specific volatile compounds by gas chromatography (GC) and coupled GC-mass spectrometry (GC-MS). From the complex collected blends, five main compounds were identified in both species. Hexanal, heptanal and (E)-2-decenal were found predominantly in donkey extracts, whilst ethyl octanoate and ethyl decanoate were found predominantly in horse extracts. One compound, (E)-2-octenal, was detected exclusively in donkey ex...
Source: Ticks and Tick borne Diseases - February 17, 2019 Category: Zoology Source Type: research

Implementation of preventive measures against tick-borne infections in a non-endemic area for tick-borne encephalitis — results from a population-based survey in Lower Saxony, Germany
Publication date: Available online 16 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Mahrrouz Caputo, Vivien Stumpe, Nicole Rübsamen, Rafael T. Mikolajczyk, André KarchAbstractLyme borreliosis (LB) and tick-borne encephalitis (TBE) are the most common tick-borne diseases in Germany. While for LB only non-specific prevention strategies exist, TBE can be additionally prevented by vaccination. It is unclear to which extent non-specific prevention strategies are applied by individuals living in non-endemic area for TBE in Germany, and whether TBE vaccination status affects their implementation. Partic...
Source: Ticks and Tick borne Diseases - February 16, 2019 Category: Zoology Source Type: research

Molecular investigation of tick-borne pathogens in ixodid ticks infesting domestic animals (cattle and sheep) and small rodents (black rats) of Corsica, France
This study aimed to investigate the presence and perform molecular characterization of Anaplasmataceae, Rickettsia spp., and Borrelia burgdorferi sensu lato (sl) in tick species collected in Corsica. Ticks from cattle (Bos taurus), sheep (Ovis aries), and rodents (Rattus rattus) were collected from May to September 2016. DNA was purified from ticks, submitted to quantitative real-time polymerase chain reaction (qPCR) and sequenced for phylogenetic analysis. In total, 660 ticks were collected from 111 animals during the study. The most abundant collected tick species from cattle was Rhipicephalus bursa (n = 49...
Source: Ticks and Tick borne Diseases - February 14, 2019 Category: Zoology Source Type: research

Tick-borne pathogens in the European polecat, Mustela putorius and in attached Ixodes hexagonus ticks from Germany
Publication date: Available online 11 February 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Nina Król, Anna Obiegala, Franz Maximilian Kretschmar, Dietmar Hamel, Martin PfefferAbstractThe European polecat, Mustela putorius, occurs almost throughout Europe. However, there is a lack of data on the ectoparasite fauna and the potential role in the circulation of tick-borne pathogens (TBP) of this mustelid species. The aim of this study was to investigate whether M. putorius contributes to the maintenance of TBP in Germany. DNA samples extracted from spleen tissue of 117 M. putorius, which had been collected mainl...
Source: Ticks and Tick borne Diseases - February 12, 2019 Category: Zoology Source Type: research

Nucleocapsid protein-specific IgM antibody responses in the disease progression of severe fever with thrombocytopenia syndrome
ConclusionsOur data highlight distinct humoral profiles of NP-specific IgM responses among SFTS patients with different disease progressions and clinical outcomes. (Source: Ticks and Tick borne Diseases)
Source: Ticks and Tick borne Diseases - February 8, 2019 Category: Zoology Source Type: research

A countrywide molecular survey leads to a seminal identification of the invasive cattle tick Rhipicephalus (Boophilus) microplus in Cameroon, a decade after it was reported in Cote d’Ivoire
This study investigated the occurrence of R. microplus in Cameroon, the genetic polymorphism of the tick and population structure of isolates from different regions of the country to provide data that underpin the design of future vector control programs.A cross-sectional survey was conducted in which ticks were collected from cattle at 54 sites across the five Agroecological zones (AEZs) within Cameroon. Tick identity (sex and species) was assigned using taxonomic keys. Species identity was confirmed through amplification and sequencing of the mitochondrial COI and 16S rRNA genes. A total of 7091 ticks were collected out ...
Source: Ticks and Tick borne Diseases - February 8, 2019 Category: Zoology Source Type: research

Lumefantrine and o-choline – Parasite metabolism specific drug molecules inhibited in vitro growth of Theileria equi and Babesia caballi in MASP culture system
In this study, we have screened the in vitro inhibitory efficacy of four different drug molecules (o-choline, DABCO®, lumefantrine and eugenol) against T. equi and B. caballi, targeting different parasite metabolism pathways. Imidocarb dipropionate and diminazene aceturate were used as reference control drugs. The 50% in vitro growth inhibitory concentration (IC50) of lumefantrine, o-choline, DABCO® and eugenol for T. equi were: 30.90 μM; 84.38 μM; 443 μM; 120 μM and for B. caballi growth inhibition were: 5.58 μM; 135.29 μM; 150 μM; 197.05&thinsp...
Source: Ticks and Tick borne Diseases - February 5, 2019 Category: Zoology Source Type: research