Theileriosis

Dantas‐Torres, Filipe; Otranto, Domenico

doi:10.1007/978-3-319-13884-8_22

Cited by 3 publications

(3 citation statements)

References 27 publications

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“…The pathogenicity and infectivity of each Theileria species have been seen to usually differ from one geographical region to another. For instance, T. buffeli has been seen to be of minor impact in cattle compared to T. parva [ 34 ].…”

Section: Discussionmentioning

confidence: 99%

Genomic Profiling for Piroplasms in Feeding Ixodid Ticks in the Eastern Cape, South Africa

et al. 2020

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Importation of tick-infected animals and the uncontrollable migration of birds and wild animals across borders can lead to geographical expansion and redistribution of ticks and pathogen vectors, thus leading to the emergence and re-emergence of tick-borne diseases in humans and animals. Comparatively, little is known about the occurrence of piroplasms in ixodid ticks in the Eastern Cape, South Africa, thus necessitating this study, which is aimed at detecting piroplasms (Theileria and Babesia) from feeding tick samples collected from cattle, sheep, and goats in selected sites in the Eastern Cape, South Africa. A total of 1200 feeding ixodid ticks collected from farm animals at selected homesteads were first subjected to molecular identification using mitochondrial 12S ribosomal RNA (rRNA) gene by PCR and were further tested for the presence of piroplasms through amplification of the 18S rRNA gene via nested-PCR followed by sequencing of the PCR products. The results indicated that 853 (71.1%) corresponded to the genus Rhipicephalus, 335 (27.9%) corresponded to genus Amblyomma, and 12 (1%) corresponded to genus Haemaphysalis. Amblyomma hebraeum and Rhipicephalus appendiculatus were the most common identified ticks from this study. The 18S rRNA nested-PCR revealed that 44 (3.7%) samples were confirmed positive for Theileria. A homology search for the generated sequences revealed a high percentage identity of 98–98.9% similarity to T. buffeli, T. orientalis, and T. sergenti in the GenBank. Based on the results obtained herein, we conclude that there is a big diversity of Theileria species; therefore, we suggest that this research should cover more geographical areas in order to reveal the true prevalence of this pathogen in the studied area because this will be a great step in the possible prevention of an outbreak that could have devastating effects on livestock production and human health in both the studied areas and South Africa at large.

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Section: Discussionmentioning

confidence: 99%

Genomic Profiling for Piroplasms in Feeding Ixodid Ticks in the Eastern Cape, South Africa

et al. 2020

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“…The adoption of ECF immunization for cattle may affect the productivity of other animals. Dantas-Torres and Otranto ( 72 ) report that parasites related to T. parva have also seen in cats, horses, and donkeys. The expenditure for preventing ECF also can influence the adoption of other animals vaccination due to limited resources.…”

Section: Research and Knowledge Gapsmentioning

confidence: 99%

Economics of East Coast fever: a literature review

Surve,

Hwang,

Manian

et al. 2023

Front. Vet. Sci.

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East Coast fever (ECF) is a cattle disease caused by a protozoan parasite called Theileria parva (T. parva). Theileria parva is transmitted among cattle by ticks. It is endemic in parts of central, eastern, and southern Africa and imposes an economic burden through illness and death of approximately a half of a billion U.S. dollars annually. This paper reviews existing science on the economics of ECF. We utilize a conceptual model that defines primary categories of economic costs due to ECF and use it to organize a synthesis of the literature on aggregate and micro level direct costs of the disease and the costs and benefits related to various ECF management strategies. We then identify knowledge gaps to motivate for future research.

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“…At least five species of Theileria (T. parva, T. annulata, T. taurotragi, T. velifera, and members of T. sergenti/orientalis/buffeli group) have been found to infect the cattle. The most important species responsible for the disease are T. annulata and T. parva (Dantas-Torres and Otranto, 2016).…”

Section: Introductionmentioning

confidence: 99%

Detection of Theileria Species among Imported And Local Breed Feedlot Bulls in Duhok Governorate–kurdistan Region /iraq

Haji Khalid,

Buzo Mikael

2023

UOD

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Background: Bovine theileriosis is a tick-born disease in tropical and subtropical regions of the world. The study was aimed to detect Theileria sp. at genus level in blood samples of both local and imported feedlot bulls by direct Giemsa staining, ELISA, and nested polymerase chain reaction. Methods: A total of 250 blood samples (125 local and 125 imported feedlot bulls) were collected randomly. The samples were collected from five different districts of the Duhok Governorate in the Kurdistan region, Iraq from 1 st July to 31 st of October 2021. Giemsa stain and ELISA techniques were performed for all cases, while the nPCR was done for seropositive cases recognized by ELISA. Results: The infection with Theileria parasite was 8.8% (n=22) by Giemsa staining and 11.2% (n=28) was seropositive by ELISA. The current study showed that 75% (n=21) of 28 seropositive cases by ELISA were positive by a nPCR technique. Theileria parasite was highest among imported breeds compared to the local breeds. The highest rate of Theileria parasite was in the Shekhan and the Summel districts of both imported and local breeds. Conclusions: This study showed that the imported breeds have a higher rate of Theileria parasite but the overall difference was not statistically different (P=value 0.0772

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Theileriosis

Cited by 3 publications

References 27 publications

Genomic Profiling for Piroplasms in Feeding Ixodid Ticks in the Eastern Cape, South Africa

Genomic Profiling for Piroplasms in Feeding Ixodid Ticks in the Eastern Cape, South Africa

Economics of East Coast fever: a literature review

Detection of Theileria Species among Imported And Local Breed Feedlot Bulls in Duhok Governorate–kurdistan Region /iraq

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