Molecular characterization and phylogenetic study of Theileria sp. parasites detected in cattle from the Moscow region of Russia

Kovalchuk, Svetlana N.

doi:10.1016/j.ttbdis.2021.101835

Cited by 2 publications

(3 citation statements)

References 43 publications

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“…Theileria orientalis is a widespread piroplasm, and literature data describe clinical outbreaks of oriental theileriosis with high economic losses in New Zealand and Australia (McFadden et al, 2013;Kamau et al, 2011). In Europe, recent surveys indicate the presence of Theileria orientalis in Italy (Ceci et al, 1997), Greece (Papadopoulos, 1999), Spain (García-Sanmartín et al, 2006), Portugal (Gomes et al, 2013), Romania (Ionita et al, 2013), Hungary (Hornok et al, 2014), the United Kingdom (Fernández de Marco et al, 2016), Serbia (Vasić et al, 2018), Croatia (Jurković et al, 2020) and Russia (Kovalchuk, 2022). Furthermore, Theileria orientalis was recorded in asymptomatic cattle, demonstrating a very low prevalence in a cross-sectional study (5/135, 3.70%) from neighbouring Serbia (Vasić et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Molecular evidence of Theileria orientalis infection in cattle from Bosnia and Herzegovina

Stevanović́

Radalj

2023

VET GLASNIK

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There are no data on the distribution of oriental theileriosis in cattle from Bosnia and Herzegovina. For the first time, a possible endemic focus of Theileria orientalis infection was confirmed in specific areas of Pale municipality, Sarajevo-Romanija region, Bosnia and Herzegovina. Selective sampling included 30 cattle from 10 smallholder farms in several locations in Pale municipality. The total of 30 whole blood samples were screened for the presence of piroplasms using commercial PCR. Positive PCR products were sequenced in both directions, the sequences were analyzed and a phylogenetic tree was created. Piroplasm (Babesia/Theileria-specific) DNA fragments were detected in 13/30 examined cattle (43%). At the farm level, PCR-positive animals were identified in 6/10 examined farms (60%). Upon sequence analysis, the species Theileria orientalis was confirmed. This survey reports a high rate of PCR-positive cases of bovine piroplasmosis and provides the first description of Theileria orientalis in Bosnia and Herzegovina.

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Section: Introductionmentioning

confidence: 99%

Molecular evidence of Theileria orientalis infection in cattle from Bosnia and Herzegovina

Stevanović́

Radalj

2023

VET GLASNIK

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“…Theileriosis, which is caused by different species of the genus Theileria, is one of the economically significant multi-host tick-transmitted haemoprotozoan diseases of cattle in the tropics and subtropical region of the country (Aparna et al, 2011;Manoj and Singh, 2021) Genus Theileria comes under the phylum Apicomplexa, order Piroplasmida, and family Theileridae, infecting wild and domestic ruminants worldwide (Kovalchuk, 2022;Surya et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Theileria parva, the causative agent of East Coast fever, and Theileria annulata, the causative agent of tropical theileriosis/Mediterranean theileriosis, are the most pathogenic species among them (Kalaiyarasi and Elayadeth Meethal, 2023). Theileria-associated bovine anaemia, also known as Oriental theileriosis, is caused by the moderately pathogenic Theileria orientalis, also known as Theileria buffeli, and Theileria sergenti (Kovalchuk, 2022;Mohan, 2019), which is the causative agent of benign or non-transforming theileriosis and mainly affects erythrocytes (Watts et al, 2016). Animals that recover from acute tropical theileriosis continue to become persistent carriers, which is vital for the continuation of the parasite life cycle, particularly in areas where it is endemic (Sharifiyazdi et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Haematological Alterations in Crossbred and Vechur Cattle Affected With Bovine Theileriosis

Kalaiyarasi,

Elayadeth-Meethal,

Deepa

et al. 2023

JIVA

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Theileria parasitises red and white blood cells. T. annulata causes bovine tropical theileriosis; T. parva causes East Coast fever; and T. orientalis causes oriental theileriosis. In tropical regions, oriental theileriosis is a serious livestock illness mainly affecting red blood cells (RBCs). This study aimed to ascertain the prevalence of theileriosis infection in animals kept at the KVASU farms that appeared to be in good health. Additionally, the study sought to explore the possible correlation between the infection of Theileria and haematological markers in crossbred and Vechur cattle. The haematological parameters and Theileria infection status of fifty adult cattle were assessed. Monocytes, PDW (platelet distribution width), RDW (RBC distribution width), MPV (mean platelet volume), MCHC, HCT, RBC, HGB, and MCV demonstrated a significant breed difference (P<0.05). The RBC, WBC, MCV, MCHC, MCH, MPV, PCT, and PDW levels differed significantly (p<0.05) between animals infected with Theileria and the uninfected controls. For RBC, WBC, HGB, MCV, MCH, MPV, and PDW, there was a significant interaction (P<0.05) between the breed and Theileria infection. RBC, MPV, and PDW significantly increased in Theileria-infected crossbred cattle. On the other hand, RBC, MCV, MCH, MPV, and PDW significantly increased (P<0.05) in infected Vechur cattle. The study's results suggest that various haematologic indicators could be used as diagnostic biomarkers for Theileria infection in crossbred and Vechur cattle.

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Molecular characterization and phylogenetic study of Theileria sp. parasites detected in cattle from the Moscow region of Russia

Cited by 2 publications

References 43 publications

Molecular evidence of Theileria orientalis infection in cattle from Bosnia and Herzegovina

Molecular evidence of Theileria orientalis infection in cattle from Bosnia and Herzegovina

Haematological Alterations in Crossbred and Vechur Cattle Affected With Bovine Theileriosis

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