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https://www.readbyqxmd.com/read/29780749/-rhipicephalus-bursa-sialotranscriptomic-response-to-blood-feeding-and-babesia-ovis-infection-identification-of-candidate-protective-antigens
#1
Sandra Antunes, Joana Couto, Joana Ferrolho, Fábio Rodrigues, João Nobre, Ana S Santos, M Margarida Santos-Silva, José de la Fuente, Ana Domingos
Ticks are among the most prevalent blood-feeding arthropods, and they act as vectors and reservoirs for numerous pathogens. Sialotranscriptomic characterizations of tick responses to blood feeding and pathogen infections can offer new insights into the molecular interplay occurring at the tick-host-pathogen interface. In the present study, we aimed to identify and characterize Rhipicephalus bursa salivary gland (SG) genes that were differentially expressed in response to blood feeding and Babesia ovis infection...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29776377/shifts-in-borrelia-burgdorferi-s-l-geno-species-infections-in-ixodes-ricinus-over-a-10-year-surveillance-period-in-the-city-of-hanover-germany-and-borrelia-miyamotoi-specific-reverse-line-blot-detection
#2
Katrin Blazejak, Marie-Kristin Raulf, Elisabeth Janecek, Daniela Jordan, Volker Fingerle, Christina Strube
BACKGROUND: Lyme borreliosis caused by spirochetes of the Borrelia burgdorferi (sensu lato) complex is still the most common tick-borne disease in Europe, posing a considerable threat to public health. The predominant vector in Europe is the widespread hard tick Ixodes ricinus, which also transmits the relapsing fever spirochete B. miyamotoi as well as pathogenic Rickettsiales (Anaplasma phagocytophilum, Rickettsia spp.). To assess the public health risk, a long-term monitoring of tick infection rates with the named pathogens is indispensable...
May 18, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29776375/range-wide-genetic-analysis-of-dermacentor-variabilis-and-its-francisella-like-endosymbionts-demonstrates-phylogeographic-concordance-between-both-taxa
#3
Emily L Kaufman, Nathan E Stone, Glen A Scoles, Crystal M Hepp, Joseph D Busch, David M Wagner
BACKGROUND: The American dog tick, Dermacentor variabilis, is an important vector of pathogens to humans, wildlife and domestic animals in North America. Although this tick species is widely distributed in the USA and Canada, knowledge of its range-wide phylogeographic patterns remains incomplete. METHODS: We carried out a phylogenetic analysis of D. variabilis using samples collected from 26 USA states and five Canadian provinces. Tick samples (n = 1053 in total) originated from two main sources: existing archives (2000-2011), and new collections made from 2012 to 2013...
May 18, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29774285/molecular-prevalence-of-babesia-bigemina-in-rhipicephalus-microplus-ticks-infesting-cross-bred-cattle-of-punjab-india
#4
S A Bhat, N K Singh, H Singh, S S Rath
Babesiosis is an economically important tick-borne apicomplexan protozoan disease of cattle in tropical and subtropical regions. In the present study, Rhipicephalus microplus engorged female ticks were collected from 135 apparently healthy cattle from different agro-climatic zones of Punjab, India, to investigate the carrier status of Babesia bigemina infection in vector tick by using microscopy and PCR based assays. PCR when applied on DNA extracted from the egg masses harvested from ticks showed 1.48% (2/135) samples as positive, whereas 4...
August 2017: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/29772759/human-babesiosis-caused-by-babesia-duncani-has-widespread-distribution-across-canada
#5
John D Scott, Catherine M Scott
Human babesiosis caused by Babesia duncani is an emerging infectious disease in Canada. This malaria-like illness is brought about by a protozoan parasite infecting red blood cells. Currently, controversy surrounds which tick species are vectors of B. duncani. Since the availability of a serological or molecular test in Canada for B. duncani has been limited, we conducted a seven-year surveillance study (2011⁻2017) to ascertain the occurrence and geographic distribution of B. duncani infection country-wide...
May 17, 2018: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/29770944/analysis-of-pastoralists-perception-on-challenges-and-opportunities-for-sheep-and-goat-production-in-northern-kenya
#6
Mohamed Haji Abdilatif, Joshua Orungo Onono, Florence Kanini Mutua
Small ruminants' production contributes to livelihood of pastoral communities, but this faces myriad constraints. This study aimed at identifying challenges facing producers of small ruminants, prioritizing diseases and their control measures and documenting opportunities for improvement. Sixteen focus group discussions with livestock owners and 13 key informant interviews were done in selected areas in Mandera County, Northern Kenya, and both quantitative and qualitative data collected using a questionnaire guide...
May 16, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29769359/study-scale-determines-whether-wildlife-loss-protects-against-or-promotes-tick-borne-disease
#7
J C Buck, S E Perkins
No abstract text is available yet for this article.
May 16, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29769356/comment-on-titcomb-et-al-s-interacting-effects-of-wildlife-loss-and-climate-on-ticks-and-tick-borne-disease
#8
H J Esser, N A Hartemink, W F de Boer
No abstract text is available yet for this article.
May 16, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29766270/parasitological-and-molecular-diagnostic-of-a-clinical-babesia-caballi-outbreak-in-southern-romania
#9
Mariana Ionita, Isabela Madalina Nicorescu, Kurt Pfister, Ioan Liviu Mitrea
Equine piroplasmosis (EP) is a tick-borne disease of equids caused by Babesia caballi and/or Theileria equi, which is endemic in many tropical and temperate areas of the world. However, clinical outbreaks of EP in Romania during the last decades have not been reported Therefore, the aim of this paper is (i) to describe a clinical B. caballi outbreak in horses on several farms in Southern Romania using a diagnostic and therapeutic approach and (ii) the molecular diagnostic of EP in an endemic area of Romania...
May 15, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29763485/what-s-eating-you-ixodes-tick-and-related-diseases-part-2-diagnosis-and-treatment-of-regional-tick-borne-diseases
#10
Kelsey D Wilson, Dirk M Elston
The Ixodes tick is an important arthropod vector in the transmission of human disease. Although Lyme disease is the most prevalent zoonosis transmitted by Ixodes ticks, other less common diseases may be encountered, including human granulocytic anaplasmosis, babesiosis, Powassan virus infection, tick-borne encephalitis, Borrelia miyamotoi disease, and tick paralysis. In part 2 of this review, disease presentation, diagnosis, and treatment of these less commonly encountered tick-borne diseases are discussed.
April 2018: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29762747/detection-of-babesia-spp-in-dogs-and-their-ticks-from-peninsular-malaysia-emphasis-on-babesia-gibsoni-and-babesia-vogeli-infections-in-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae
#11
Batah Kunalan Prakash, Van Lun Low, Wei Yin Vinnie-Siow, Tiong Kai Tan, Yvonne Ai-Lian Lim, Akhavan Rezaei Morvarid, Sazaly AbuBakar, Mohd Sofian-Azirun
Canine babesiosis is an emerging tick-borne disease with a worldwide distribution, including Malaysia. While the prevalence of Babesia has been documented from dogs in Malaysia, occurrence of Babesia has been relatively little studied in their tick vectors. Accordingly, a total of 240 dogs and 140 Rhipicephalus sanguineus sensu lato (s.l.) (Acari: Ixodidae) ticks from Malaysia were molecularly screened for the presence of Babesia protozoa in the present study. Babesia gibsoni was only detected in ticks (1.4%), whereas Babesia vogeli was detected in both ticks (1...
May 12, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29757511/ixodes-ricinus-parasitism-of-birds-increases-at-higher-winter-temperatures
#12
Robert W Furness, Euan N Furness
Increasing winter temperatures are expected to cause seasonal activity of Ixodes ricinus ticks to extend further into the winter. We caught birds during winter months (November to February) at a site in the west of Scotland over a period of 24 years (1993-1994 to 2016-2017) to quantify numbers of attached I. ricinus and to relate these to monthly mean temperature. No adult ticks were found on any of the 21,731 bird captures, but 946 larvae and nymphs were found, with ticks present in all winter months, on 16 different species of bird hosts...
June 2018: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/29753652/epidemiological-survey-of-a-cervine-theileria-in-wild-deer-questing-ticks-and-cattle-in-hokkaido-japan
#13
Shunya Shibata, Thillaiampalam Sivakumar, Ikuo Igarashi, Rika Umemiya-Shirafuji, Hisashi Inokuma, Shinya Fukumoto, Naoaki Yokoyama
Species of Theileria are tick-borne hemoprotozoan parasites of ruminants that can cause severe clinical disease. In this study, blood samples were obtained from 91 wild sika deer in various districts in Hokkaido, Japan. Samples were tested using a PCR assay designed to amplify a full-length major piroplasm surface protein (MPSP) gene of a cervine Theileria species, designated as Theileria sp. (sika 1). The amplicons of 57 out of 89 PCR-positive samples were cloned and sequenced. The sequences shared 99.1%-100% identity scores, indicating the MPSP gene of Theileria sp...
May 4, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29752142/genetic-diversity-of-theileria-equi-and-babesia-caballi-infecting-horses-of-central-southern-italy-and-preliminary-results-of-its-correlation-with-clinical-and-serological-status
#14
Giuseppe Manna, Antonella Cersini, Roberto Nardini, Leticia Elisa Bartolomé Del Pino, Valeria Antognetti, Maurizio Zini, Raffaella Conti, Raniero Lorenzetti, Vincenzo Veneziano, Gian Luca Autorino, Maria Teresa Scicluna
Babesia caballi and Theileria equi are tick-borne pathogens causing equine piroplasmosis infecting the Equidae family in which they cause significant sanitary and economic losses. Furthermore, equine piroplasmosis is included in the World Animal Health Organization (OIE) notifiable diseases list with possible movement restrictions for positive horses. Thirty-nine EDTA and whole-blood samples collected during 2013 and 2014 from symptomatic and asymptomatic horses of Central-Southern Italy were included in the present study either because of their strongly positive results in Real Time (RT) PCRs targeting the 18S rRNA gene specific for each piroplasm and/or due to their serological ELISA/18S rRNA RT-PCR discordant results...
May 4, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29748119/seroprevalence-and-genetic-characterization-of-severe-fever-with-thrombocytopenia-syndrome-virus-in-domestic-goats-in-south-korea
#15
Kwang-Min Yu, Min-Ah Yu, Su-Jin Park, Young-Il Kim, Norbert John Robles, Hyeok-Il Kwon, Eun-Ha Kim, Young-Jae Si, Hiep Dinh Nguyen, Young Ki Choi
Severe fever with thrombocytopenia syndrome (SFTS) is a newly emerging tick-borne infectious disease caused by the SFTS virus (SFTSV). To investigate the prevalence of SFTSV in domestic goats in South Korea, we collected blood samples in commercial slaughterhouses in Chungbuk Province in 2017. Of the 207 samples tested, 4 (2%) were found to be positive for viral RNA by RT-PCR and 30 (14.4%) were positive for SFTSV antibody as detected by a nucleocapsid (NP) protein-based ELISA. Phylogenetic analysis of the non-structural protein (NS) sequences showed that all viruses belonged to the genotype B, although they were clustered into two different sublineages that showed the highest homology with the KR612076-JP01 and KY789441-CB3 human isolate from South Korea...
May 2, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29747680/first-report-of-cytauxzoon-sp-infection-in-domestic-cats-in-switzerland-natural-and-transfusion-transmitted-infections
#16
Alice Nentwig, Marina L Meli, Johanna Schrack, Iris M Reichler, Barbara Riond, Corinne Gloor, Judith Howard, Regina Hofmann-Lehmann, Barbara Willi
BACKGROUND: Cytauxzoonosis is an emerging tick-borne disease of domestic and wild felids. Cytauxzoon felis induces severe and often fatal disease in domestic cats. In Europe, clinical and subclinical infections caused by Cytauxzoon sp. are described. We report the first cases of Cytauxzoon sp. infection in domestic cats in Switzerland. METHODS: Clinical and laboratory data and results of PCR analyses were collected from Cytauxzoon sp. PCR-positive cats and the cats followed for up to 851 days...
May 10, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29746483/efficient-detection-of-symptomatic-and-asymptomatic-patient-samples-for-babesia-microti-and-borrelia-burgdorferi-infection-by-multiplex-qpcr
#17
Shekerah Primus, Lavoisier Akoolo, Samantha Schlachter, Kristine Gedroic, Albert D Rojtman, Nikhat Parveen
BACKGROUND: Tick-borne infections have been increasing steadily over the years, with co-infections with Borrelia burgdorferi and Babesia microti/divergens emerging as a serious health problem. B. burgdorferi is a spirochetal bacterium that causes Lyme disease while protozoan pathogens belonging to Babesia species are responsible for babesiosis. Currently used serological tests do not always detect acute Lyme disease or babesiosis, and fail to differentiate cured patients from those who get re-infected...
2018: PloS One
https://www.readbyqxmd.com/read/29745301/comparative-genome-analysis-of-alkhumra-hemorrhagic-fever-virus-with-kyasanur-forest-disease-and-tick-borne-encephalitis-viruses-by-the-in-silico-approach
#18
Navaneethan Palanisamy, Dario Akaberi, Johan Lennerstrand, Åke Lundkvist
Alkhumra hemorrhagic fever virus (AHFV), a relatively new member of the Flaviviruses, was discovered in Saudi Arabia 23 years ago. AHFV is classified in the tick-borne encephalitis virus serocomplex, along with the Kyasanur forest disease virus (KFDV) and tick-borne encephalitis virus (TBEV). Currently, very little is known about the pathologies of AHFV. In this study, using the available genome information of AHFV, KFDV and TBEV, we have predicted and compared the following aspects of these viruses: evolution, nucleotide and protein compositions, recombination, codon frequency, substitution rate, N- and O-glycosylation sites, signal peptide and cleavage site, transmembrane region, secondary structure of 5' and 3' UTRs and RNA-RNA interactions...
May 10, 2018: Pathogens and Global Health
https://www.readbyqxmd.com/read/29739424/influence-of-climatic-factors-on-ixodes-ricinus-nymph-abundance-and-phenology-over-a-long-term-monthly-observation-in-switzerland-2000-2014
#19
Gaël Hauser, Olivier Rais, Francisca Morán Cadenas, Yves Gonseth, Mahmoud Bouzelboudjen, Lise Gern
BACKGROUND: One of the major public health challenges in the field of communicable diseases consists of being able to predict where and when a population is at risk of being infected by a pathogen. In the case of vector-borne diseases, such predictions often require strong ecological knowledge of the vector life-cycle and the environmental conditions promoting or preventing its establishment and maintenance. In this study, we analyse how climatic factors influence the abundance and phenology of the Lyme borreliosis vector Ixodes ricinus in a Swiss temperate forest, based on a long-term monthly observation over a period of 15 years (2000 and 2014)...
May 8, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29738078/tick-borne-disease-risk-in-a-forest-food-web
#20
Richard S Ostfeld, Taal Levi, Felicia Keesing, Kelly Oggenfuss, Charles D Canham
Changes to the community ecology of hosts for zoonotic pathogens, particularly rodents, are likely to influence the emergence and prevalence of zoonotic diseases worldwide. However, the complex interactions between abiotic factors, pathogens, vectors, hosts, and both food resources and predators of hosts are difficult to disentangle. Here we (1) use 19 years of data from six large field plots in southeastern New York to compare the effects of hypothesized drivers of interannual variation in Lyme disease risk, including the abundance of acorns, rodents, and deer, as well as a series of climate variables; and (2) employ landscape epidemiology to explore how variation in predator community structure and forest cover influences spatial variation in the infection prevalence of ticks for the Lyme disease bacterium, Borrelia burgdorferi, and two other important tick-borne pathogens, Anaplasma phagocytophilum and Babesia microti...
May 8, 2018: Ecology
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