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Theileria orientalis

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https://www.readbyqxmd.com/read/27930692/dna-of-piroplasms-of-ruminants-and-dogs-in-ixodid-bat-ticks
#1
Sándor Hornok, Krisztina Szőke, Dávid Kováts, Péter Estók, Tamás Görföl, Sándor A Boldogh, Nóra Takács, Jenő Kontschán, Gábor Földvári, Levente Barti, Alexandra Corduneanu, Attila D Sándor
In this study 308 ticks (Ixodes ariadnae: 26 larvae, 14 nymphs, five females; I. vespertilionis: 89 larvae, 27 nymphs, eight females; I. simplex: 80 larvae, 50 nymphs, nine females) have been collected from 200 individuals of 17 bat species in two countries, Hungary and Romania. After DNA extraction these ticks were molecularly analysed for the presence of piroplasm DNA. In Hungary I. ariadnae was most frequently identified from bat species in the family Vespertilionidae, whereas I. vespertilionis was associated with Rhinolophidae...
2016: PloS One
https://www.readbyqxmd.com/read/27927924/inadequate-differentiation-of-theileria-orientalis-genotypes-buffeli-and-ikeda-in-an-mt-pcr-assay-using-the-p23-gene-as-a-marker
#2
Hagos Gebrekidan, Robin B Gasser, Abdul Jabbar
Oriental theileriosis is a tick-borne disease of bovids, caused by haemoprotozoan parasites within the Theileria orientalis complex.….
December 7, 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27863521/seroprevalence-of-bovine-theileriosis-in-northern-china
#3
Yaqiong Li, Zhijie Liu, Junlong Liu, Jifei Yang, Qian Li, Pengfei Guo, Guiquan Guan, Guangyuan Liu, Jianxun Luo, Hong Yin, Youquan Li
BACKGROUND: Bovine theileriosis is a common disease transmitted by ticks, and can cause loss of beef and dairy cattle worldwide. Here, an indirect enzyme-linked immunosorbent assay (iELISA) based on Theileria luwenshuni surface protein (TlSP) was developed and used to carry out a seroepidemiological survey of bovine theileriosis in northern China. METHODS: We used the BugBuster Ni-NTA His•Bind Purification Kit to purify recombinant TlSP (rTlSP), which was subsequently analyzed by Western Blotting to evaluate cross-reactivity with other pathogen-positive sera...
November 18, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27817011/genetic-characterization-of-theileria-orientalis-from-cattle-in-the-republic-of-korea
#4
Jinho Park, Yu-Jung Han, Du-Gyeong Han, Jeong-Byoung Chae, Joon-Seok Chae, Do-Hyeon Yu, Young-Sung Lee, Bae-Keun Park, Hyeon-Cheol Kim, Kyoung-Seong Choi
Theileria orientalis is the causative agent of benign theileriosis, which is distributed mainly in Asian countries, and causes serious economic losses in the livestock industry. The present study was performed to investigate the epidemiology of T. orientalis infections in cattle in the Republic of Korea (ROK) and to characterize the genetic diversity of T. orientalis based on the major piroplasm surface protein (MPSP) genes. In 2015, between July and August, blood samples were collected from 138 asymptomatic cattle in four different geographical regions (Hoengseong, Jeongeup, Namwon, and Jeju island) in the ROK...
November 6, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27809988/babesia-ovata-taxonomy-phylogeny-and-epidemiology
#5
REVIEW
Thillaiampalam Sivakumar, Ikuo Igarashi, Naoaki Yokoyama
Babesia ovata, which is transmitted by Haemaphysalis longicornis, is an intraerythrocytic protozoan parasite of cattle. Based on its morphology, B. ovata is classified as a large-type Babesia. The developmental stages of B. ovata have been described both in cattle and the tick vector. In infected adult female ticks, the parasite is transovarially transmitted to the tick eggs. The sexual reproduction of B. ovata has been demonstrated in the tick midgut. The diagnostic tools that are currently available for the specific detection of B...
October 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27809975/detection-of-theileria-orientalis-in-mosquito-blood-meals-in-the-united-kingdom
#6
M Fernández de Marco, V A Brugman, L M Hernández-Triana, L Thorne, L P Phipps, N I Nikolova, A R Fooks, N Johnson
Theileria spp. are tick-borne protozoan parasites that infect a wide range of wild and domestic animals. In this study, the utility of xenosurveillance of blood-fed specimens of Culiseta annulata for detecting the presence of piroplasms in livestock was investigated. Blood-fed mosquitoes were collected at Elmley National Nature Reserve, Kent, United Kingdom. All specimens were morphologically identified, and DNA barcoding was used to confirm the morphological identification. Both the vertebrate host species and Theileria genome was detected within the bloodmeal by real-time PCR...
October 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27546888/anaplasma-phagocytophilum-and-babesia-spp-in-roe-deer-capreolus-capreolus-fallow-deer-dama-dama-and-mouflon-ovis-musimon-in-germany
#7
Melanie Kauffmann, Steffen Rehbein, Dietmar Hamel, Walburga Lutz, Mike Heddergott, Kurt Pfister, Cornelia Silaghi
Infections with the tick-borne pathogens Anaplasma phagocytophilum and Babesia spp. can cause febrile disease in several mammalian species, including humans. Wild ruminants in Europe are suggested to serve as reservoir hosts for particular strains or species of these pathogens. The aims of this study were to investigate the occurrence of A. phagocytophilum and Babesia spp. in roe deer (Capreolus capreolus), fallow deer (Dama dama) and mouflon (Ovis musimon orientalis) in Germany, and the diversity and host association of genetic variants of A...
August 18, 2016: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/27364878/assessing-the-performance-of-multiplexed-tandem-pcr-for-the-diagnosis-of-pathogenic-genotypes-of-theileria-orientalis-using-pooled-blood-samples-from-cattle
#8
Hagos Gebrekidan, Robin B Gasser, Mark A Stevenson, Sean McGrath, Abdul Jabbar
Oriental theileriosis caused by multiple genotypes of Theileria orientalis is an important tick-borne disease of bovines. Here, we assessed the performance of an established multiplexed tandem PCR (MT-PCR) for the diagnosis of the two recognized, pathogenic genotypes (chitose and ikeda) of T. orientalis in cattle using pooled blood samples. We used a total of 265 cattle blood samples, which were divided into two groups according to previous MT-PCR results for individual samples. Samples in group 1 (n = 155) were from a herd with a relatively high prevalence of T...
June 27, 2016: Molecular and Cellular Probes
https://www.readbyqxmd.com/read/27344507/molecular-assays-reveal-the-presence-of-theileria-spp-and-babesia-spp-in-asian-water-buffaloes-bubalus-bubalis-linnaeus-1758-in-the-amazon-region-of-brazil
#9
Júlia A G Silveira, Cairo H S de Oliveira, Bruna T Silvestre, Tatiana T Albernaz, Rômulo C Leite, José D Barbosa, Carlos M C Oliveira, Múcio F B Ribeiro
Approximately 50% of buffalo herds in Brazil are located in Pará state in northern Brazil. There are several properties where cattle and buffalo live and graze together, and thus, buffalo pathogens may threaten the health of cattle and vice versa. Therefore, knowledge of infectious agents of buffalo is essential for maintaining healthy livestock. Clinical disease caused by Theileria and Babesia parasites in the Asian water buffalo is not common, although these animals may act as reservoir hosts, and the detection of these hemoparasites in buffaloes is as important as it is in cattle...
July 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27270395/predicting-the-potential-environmental-suitability-for-theileria-orientalis-transmission-in-new-zealand-cattle-using-maximum-entropy-niche-modelling
#10
K E Lawrence, S R Summers, A C G Heath, A M J McFadden, D J Pulford, W E Pomroy
The tick-borne haemoparasite Theileria orientalis is the most important infectious cause of anaemia in New Zealand cattle. Since 2012 a previously unrecorded type, T. orientalis type 2 (Ikeda), has been associated with disease outbreaks of anaemia, lethargy, jaundice and deaths on over 1000 New Zealand cattle farms, with most of the affected farms found in the upper North Island. The aim of this study was to model the relative environmental suitability for T. orientalis transmission throughout New Zealand, to predict the proportion of cattle farms potentially suitable for active T...
July 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27149894/epidemiology-of-bovine-hemoprotozoa-parasites-in-cattle-and-water-buffalo-in-vietnam
#11
Gayani Weerasooriya, Thillaiampalam Sivakumar, Dinh Thi Bich Lan, Phung Thang Long, Hitoshi Takemae, Ikuo Igarashi, Noboru Inoue, Naoaki Yokoyama
A PCR-based survey of hemoprotozoa parasites detected Babesia bigemina, Theileria orientalis and Trypanosoma theileri among cattle and water buffalo in Vietnam, and a new Babesia sp. closely related to Babesia ovata was detected in cattle only. In addition, Theileria annulata and Trypanosoma evansi were not detected in both cattle and water buffalo. Phylogenetic analysis detected T. orientalis MPSP genotypes 3, 5, 7 and N3 in cattle and 5, 7, N1 and N2 in water buffalo. Additionally, water buffalo-derived T...
September 1, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27094144/seasonal-changes-in-hemograms-and-theileria-orientalis-infection-rates-among-holstein-cattle-pastured-in-the-mountains-in-the-republic-of-korea
#12
Kyoung-Seong Choi, Do-Hyeon Yu, Joon-Seok Chae, Bae-Keun Park, Jae-Gyu Yoo, Jinho Park
In the current study, we compared seasonal changes in complete blood counts (CBCs) and rates of infection with a tick-borne pathogen between Holstein cattle housed indoors and those maintained outside on pasture. There were differences in white blood cell (WBC) parameters, but the changes were not associated with seasons or the housing type. Analysis of red blood cell (RBC) parameters showed lower values in August and November versus March, and in the cattle maintained on pasture versus the housed cattle. In comparison with the RBC count of the housed cattle in March (10...
May 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27078669/dynamics-of-theileria-orientalis-genotype-population-in-cattle-in-a-year-round-grazing-system
#13
Tatsunori Masatani, Shunpei Yoshihara, Atsuko Matsubara, Takafumi Gotoh, Hideyuki Takahashi, Tetsuya Tanaka, Masako Andoh, Yasuyuki Endo, Tomohide Matsuo
Theirelia orientalis is a tick-borne haemoprotozoan parasite, and infection with this parasite is one of the most important diseases for grazing cattle. Co-infection of cattle with different genotypes of T. orientalis often occurs. In this study, we investigated the temporal dynamics of genotypes in cattle in a year-round grazing system in Japan. Genotype-specific PCR assays to determine major piroplasm surface protein (MPSP) genotypes (types 1 to 5) of T. orientalis were performed by using time-course blood samples collected from grazing cattle and ticks in a pasture...
March 2016: Acta Parasitologica
https://www.readbyqxmd.com/read/27047205/emergence-of-oriental-theileriosis-in-cattle-and-its-transmission-through-rhipicephalus-boophilus-microplus-in-assam-india
#14
Parikshit Kakati, Prabhat Chandra Sarmah, Debdatta Ray, Kanta Bhattacharjee, Rajeev Kumar Sharma, Luit Moni Barkalita, Dipak Kumar Sarma, Bhaben Chandra Baishya, Pranjal Borah, Bobitha Stanley
AIM: The aim of the present study was to investigate the presence of Theileria in blood samples of crossbred and indigenous adult cows raised under unorganized small scale farming system in a Babesia and Anaplasma endemic geographical area from Assam, India and to see its transmission through Rhipicephalus (Boophilus) microplus ticks. MATERIALS AND METHODS: For the present study, 57 clinical cases of cattle suspected to be of hemoparasitic infections were taken into consideration...
September 2015: Veterinary World
https://www.readbyqxmd.com/read/27034193/molecular-characterization-of-theileria-orientalis-from-cattle-in-ethiopia
#15
Hagos Gebrekidan, Robin B Gasser, Gad Baneth, Daniel Yasur-Landau, Yaarit Nachum-Biala, Asrat Hailu, Abdul Jabbar
This study reports the first molecular characterization of Theileria orientalis in local breeds of cattle in Ethiopia. A conventional PCR utilizing major piroplasm surface protein (MPSP) gene and an established multiplexed tandem PCR (MT-PCR) were used to characterize T. orientalis and to assess the infection intensity, respectively. Of 232 blood samples tested, T. orientalis DNA was detected in only 2.2% of samples using conventional PCR; two genotypes buffeli (1.3%; 3/232) and type 5 (0.9%; 2/232) of T. orientalis were detected...
July 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27021893/prevalence-of-theileria-orientalis-types-in-beef-cattle-herds-on-the-north-coast-of-new-south-wales
#16
Akk Proctor, M Ball, P Freeman, C Jenkins, D R Bogema
OBJECTIVE: To estimate the prevalence of Theileria orientalis infection for Chitose, Ikeda and Buffeli major piroplasm surface protein (MPSP) types at a herd- and animal-level in beef cattle in the North Coast Livestock Health and Pest Authority (NCLHPA) region of New South Wales (NSW). METHODS: A total of 24 beef herds in the NCLHPA region containing more than 100 cattle were randomly selected. Blood samples were collected from five animals per herd and tested using Theileria PCR for Chitose, Buffeli and Ikeda...
April 2016: Australian Veterinary Journal
https://www.readbyqxmd.com/read/27021887/in-this-issue-april-2016-horse-owners-perceptions-of-australian-equine-research-%C3%A2-%C3%A2-%C3%A2-association-between-increased-tracheal-blood-and-poor-racing-performance%C3%A2-%C3%A2-%C3%A2-cardiac-perforation-by-pacemaker-lead-in-a-dog%C3%A2-%C3%A2-%C3%A2-lissencephaly-in-a-mature-australian-kelpie%C3%A2
#17
EDITORIAL
https://www.readbyqxmd.com/read/27008652/establishment-of-transient-and-stable-transfection-systems-for-babesia-ovata
#18
Hassan Hakimi, Junya Yamagishi, Yuto Kegawa, Osamu Kaneko, Shin-Ichiro Kawazu, Masahito Asada
BACKGROUND: Bovine babesiosis is a tick-borne disease caused by several species of Babesia which produce acute and fatal disease in cattle and affect livestock industry worldwide. Babesia ovata is a benign species widespread in east Asian countries and causes anemia, particularly in cattle which are co-infected with Theileria orientalis. The development of genetic manipulation methods is necessary to improve our understanding of the basic biology of protozoan pathogens toward a better control of disease...
2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27000088/molecular-detection-and-characterization-of-theileria-infection-in-cattle-and-yaks-from-tibet-plateau-region-china
#19
Gege Qin, Youquan Li, Junlong Liu, Zhijie Liu, Jifei Yang, Lin Zhang, Guangyuan Liu, Guiquan Guan, Jianxun Luo, Hong Yin
Theileriosis continues to threaten the livestock industry worldwide, but comprehensive epidemiological surveys for this disease have not been conducted in the Tibet Plateau Region, China. In this study, we screened 154 cattle blood samples from the Tibet Plateau Region (Lhasa, Lhoka, and Tianzhu), China, for detection of Theileria pathogens by polymerase chain reaction (PCR) with species-specific primers. The results revealed that the prevalence was 6.9 % (2/29) for Theileria orientalis and 27.6 % (8/29) for Theileria sinensis in Lhasa, 0 % (0/30) for T...
July 2016: Parasitology Research
https://www.readbyqxmd.com/read/26912048/factors-associated-with-seroconversion-to-the-major-piroplasm-surface-protein-of-the-bovine-haemoparasite-theileria-orientalis
#20
Cheryl Jenkins, Daniel R Bogema
BACKGROUND: Bovine theileriosis caused by Theileria orientalis is an emerging disease of cattle in the Asia-Pacific region where it causes a significant economic burden to meat and milk production. While host immunological responses to the lymphocyte-transforming species of Theileria, T. parva and T. annulata, have been well studied, little is known about the immune response to this non-transforming species. METHODS: We developed a recombinant antigen ELISA based on the major piroplasm surface protein (MPSP) of T...
2016: Parasites & Vectors
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