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Theileria orientalis

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https://www.readbyqxmd.com/read/28555954/prevalence-and-effect-of-theileria-orientalis-infection-in-homebred-calves-in-the-gloucester-region-of-new-south-wales-australia
#1
E Swilks, C Jenkins, A Poynting, D Collins, G L Krebs
OBJECTIVES: To examine the prevalence of Theileria orientalis in the Gloucester area of New South Wales and its effect on individual animals. METHODS: Blood samples (EDTA and clotted blood) were collected from a total of 55 calves and their dams from 6 properties over a 16-week period. A total of 202 and 190 blood samples were collected from the calves and dams, respectively, and were examined via blood film for the presence of intraerythrocytic T. orientalis piroplasms...
June 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28555951/in-this-issue-june-2017-home-ranges-of-dogs-in-nt%C3%A2-%C3%A2-%C3%A2-comparing-vet-student-animal-welfare-priorities%C3%A2-%C3%A2-%C3%A2-sources-of-animals-surrendered-and-euthanased-in-an-animal-shelter%C3%A2-%C3%A2-%C3%A2-carbamate-toxicoses-in-a-dog%C3%A2-%C3%A2-%C3%A2-lowland-copperhead-envenomation-in-a-dog%C3%A2-%C3%A2
#2
EDITORIAL
https://www.readbyqxmd.com/read/28482923/transplacental-transmission-of-theileria-orientalis-occurs-at-a-low-rate-in-field-affected-cattle-infection-in-utero-does-not-appear-to-be-a-major-cause-of-abortion
#3
Emma Swilks, Shayne A Fell, Jade F Hammer, Narelle Sales, Gaye L Krebs, Cheryl Jenkins
BACKGROUND: Bovine theileriosis, caused by the haemoprotozoan Theileria orientalis, is an emerging disease in East Asia and Australasia. Previous studies have demonstrated transplacental transmission of various Theileria spp. but molecular confirmation of transplacental transmission of T. orientalis has never been confirmed in the field. In this study, cow-calf (< 48 h old) pairs were sampled across 3 herds; opportunistic samples from aborted foetuses or stillborn calves were also examined...
May 8, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28427963/molecular-investigation-of-piroplasma-infection-in-white-yaks-bos-grunniens-in-gansu-province-china
#4
Sitong Li, Junlong Liu, Aihong Liu, Youquan Li, Shuqing Wang, Shufang Wang, Hong Yin, Jianxun Luo, Guiquan Guan
Piroplasmosis, including theileriosis and babesiosis, is a tick-borne haemoprotozoan disease responsible for huge economic losses to livestock industry. In China, the biology of piroplasms infective to cattle was well understood on the basis of pathogen isolations and molecular epidemiological surveys in the past few decades. But very limited information about the infection status of piroplasms in white yak (Bos grunniens), a semi-wild and endemic breed, has been recorded, so far. A total of 350 blood samples was collected from white yaks in 11 towns of Tianzhu Tibetan Autonomous County of Gansu province, China, during April to July 2015...
April 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28361802/molecular-characterization-of-babesia-and-theileria-species-in-ticks-collected-in-the-outskirt-of-monte-romano-lazio-region-central-italy
#5
Luciano Toma, Marco Di Luca, Fabiola Mancini, Francesco Severini, Carmela Mariano, Giancarlo Nicolai, Valentina Laghezza Masci, Alessandra Ciervo, Anna Maria Fausto, Simone Mario Cacciò
BACKGROUND: In 2012-2013, an investigation was carried out in the Viterbo province, Lazio region, on ticks and tick-borne Apicomplexan protozoa of the Babesia and Theileria genera. This followed the reporting of high density of ticks by soldiers operating in a military shooting range, and the signaling by owners and local veterinary authorities of several cases of babesiosis among cattle. METHODS: A total of 422 ticks were collected from 35 heads, whereas 96 ticks were collected by dragging...
January 2017: Annali Dell'Istituto Superiore di Sanità
https://www.readbyqxmd.com/read/28358861/pcr-diagnosis-of-tick-borne-pathogens-in-maharashtra-state-india-indicates-fitness-cost-associated-with-carrier-infections-is-greater-for-crossbreed-than-native-cattle-breeds
#6
Sunil W Kolte, Stephen D Larcombe, Suresh G Jadhao, Swapnil P Magar, Ganesh Warthi, Nitin V Kurkure, Elizabeth J Glass, Brian R Shiels
Tick-borne pathogens (TBP) are responsible for significant economic losses to cattle production, globally. This is particularly true in countries like India where TBP constrain rearing of high yielding Bos taurus, as they show susceptibility to acute tick borne disease (TBD), most notably tropical theileriosis caused by Theileria annulata. This has led to a programme of cross breeding Bos taurus (Holstein-Friesian or Jersey) with native Bos indicus (numerous) breeds to generate cattle that are more resistant to disease...
2017: PloS One
https://www.readbyqxmd.com/read/28028631/molecular-detection-and-genetic-diversity-of-bovine-babesia-spp-theileria-orientalis-and-anaplasma-marginale-in-beef-cattle-in-thailand
#7
Charoonluk Jirapattharasate, Paul Franck Adjou Moumouni, Shinuo Cao, Aiko Iguchi, Mingming Liu, Guanbo Wang, Mo Zhou, Patrick Vudriko, Artemis Efstratiou, Tanasak Changbunjong, Sivapong Sungpradit, Parntep Ratanakorn, Walasinee Moonarmart, Poonyapat Sedwisai, Thekhawet Weluwanarak, Witsanu Wongsawang, Hiroshi Suzuki, Xuenan Xuan
Babesia spp., Theileria orientalis, and Anaplasma marginale are significant tick-borne pathogens that affect the health and productivity of cattle in tropical and subtropical areas. In this study, we used PCR to detect the presence of Babesia bovis, Babesia bigemina, and T. orientalis in 279 beef cattle from Western Thailand and A. marginale in 608 beef cattle from the north, northeastern, and western regions. The PCRs were performed using species-specific primers based on the B. bovis spherical body protein 2 (BboSBP2), B...
February 2017: Parasitology Research
https://www.readbyqxmd.com/read/27942962/evaluating-an-indirect-rmpsp-enzyme-linked-immunosorbent-assay-for-the-detection-of-bovine-theileria-infection-in-china
#8
Shuaiyang Zhao, Junlong Liu, Hongxi Zhao, Youquan Li, Junren Xie, Aihong Liu, Muhammad-Adeel Hassan, Hong Yin, Guiquan Guan, Jianxun Luo
Bovine theileriosis, a tick-borne protozoan disease caused by Theileria annulata, Theileria orientalis and Theileria sinensis, is widespread in China and is a serious economic problem for the Chinese livestock industry. In this study, recombinant major piroplasma surface proteins (MPSP) of T. annulata, T. orientalis and T. sinensis based on MPSP genes were expressed in Escherichia coli BL21(DE3). The immunogenicity and specificity of the three purified recombinant MPSP proteins were evaluated with the reference positive sera of T...
February 2017: Parasitology Research
https://www.readbyqxmd.com/read/27938442/an-outbreak-of-oriental-theileriosis-in-dairy-cattle-imported-to-vietnam-from-australia
#9
Hagos Gebrekidan, Linda Nelson, Greg Smith, Robin B Gasser, Abdul Jabbar
This study reports an outbreak of oriental theileriosis in dairy cattle imported to Vietnam from Australia. Following clinical and pathological diagnoses, a total of 112 cattle blood samples were divided into three groups and tested using multiplexed tandem PCR. Group 1 were from aborted heifers in Vietnam; group 2 were from cattle before shipment from group 1 cattle and group 3 were from the same batch of cattle but transported to Taiwan. Theileria orientalis DNA was detected in 72·3% cattle. The prevalences of T...
May 2017: Parasitology
https://www.readbyqxmd.com/read/27930692/dna-of-piroplasms-of-ruminants-and-dogs-in-ixodid-bat-ticks
#10
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-a-multiplexed-tandem-pcr-mt-pcr-assay-using-the-p23-gene-as-a-marker
#11
LETTER
Hagos Gebrekidan, Robin B Gasser, Abdul Jabbar
No abstract text is available yet for this article.
February 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27863521/seroprevalence-of-bovine-theileriosis-in-northern-china
#12
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
#13
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...
January 2017: Parasitology Research
https://www.readbyqxmd.com/read/27809988/babesia-ovata-taxonomy-phylogeny-and-epidemiology
#14
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
#15
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
#16
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 19, 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
#17
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
#18
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
#19
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
#20
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
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