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In vivo evidence for the resistance of Theileria annulata to buparvaquone
Veterinary Parasitology, 2010The present study describes an outbreak of tropical theileriosis cases refractory to buparvaquone treatment, which occurred in a small-size dairy farm in Tunisia. Out of seven treated cows, four died in spite of repeated buparvaquone injections (2.5 and 5 mg kg(-1)) and the monitoring of the affected cows showed no improvement of the course of the ...
Moez, Mhadhbi +5 more
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Treatment of Theileria annulata infection in calves with parvaquone
Research in Veterinary Science, 1985Fifteen calves were infected by the injection of stabilate of a suspension of Hyalomma anatolicum anatolicum ticks infected with the Ankara strain of Theileria annulata. Three were kept untreated, as controls, and they all died of theileriosis. Three groups of four calves were treated intramuscularly with parvaquone (Clexon; Wellcome) when early signs ...
N, McHardy, D W, Morgan
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Investigation of lectin activity in Theileria annulata piroplasms
Acta Veterinaria Hungarica, 2005Adhesion to target cells is an essential step in the pathogenesis of many protozoal infections. Some protozoa have been reported to have a lectin activity involved in their attachment to the cell surface. The ligand-receptor interaction involved in Theileria annulata infection is unclear at present, in spite of the fact that some aspects of the process
Kaynar, Ö. +2 more
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Chemotherapy Against Theileria annulata
1981Though a large number of compounds have been tested against Theileria annulata during the last several decades, satisfactory therapy of the disease has not become available. Recently, three drugs — Imidocarb (El-Refaii & Michael, 1976; Sharma et al, 1977), Menoctone (McHardy, 1978; McHardy et al, 1976) and the closely-related Naphthoquinone, 993C (2 ...
B. S. Gill +4 more
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Virulence and Attenuation in Theileria Annulata
2002Virulence, whilst superficially a simple concept, upon deeper analysis shows considerable complexity. Here, we consider the multifaceted aspects of virulence revealed in the syndrome of tropical theileriosis. The causative pathogen, Theileria annulata, is shielded from direct immune attack since it resides within host macrophages.
R. Adamson, R. Hall
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Common and stage-specific antigens of Theileria annulata
Veterinary Immunology and Immunopathology, 1992Western blot analysis of Theileria annulata antigens was carried out using sera collected from cattle which had been immunised and challenged with either T. annulata sporozoites or schizont-infected cells. Three antigens between 71 and 73 kDa proved to be common to the three stages of parasite studied: sporozoites, schizonts and piroplasms.
M, Kachani +4 more
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Infection of bovine monocyte/macrophage populations with Theileria annulata and Theileria parva
Veterinary Immunology and Immunopathology, 1989Infection and transformation of cells of the bovine immune system by Theileria annulata and T. parva were compared. Preliminary experiments with mammary gland macrophages indicated that they were permissive to infection by T. annulata but only to a limited extent by T. parva.
E J, Glass +3 more
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Veterinary Parasitology, 2013
Theileria annulata is endemic in northern Sudan, hindering all efforts at upgrading cattle for milk production. T. lestoquardi clinical cases occur throughout the year and causes annual outbreaks that result in substantial losses in sheep. In the northern Sudan both cattle and small ruminants are frequently raised together and/or share common grazing ...
K M, Taha +4 more
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Theileria annulata is endemic in northern Sudan, hindering all efforts at upgrading cattle for milk production. T. lestoquardi clinical cases occur throughout the year and causes annual outbreaks that result in substantial losses in sheep. In the northern Sudan both cattle and small ruminants are frequently raised together and/or share common grazing ...
K M, Taha +4 more
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Theileria annulata: Carrier State and Immunitya
Annals of the New York Academy of Sciences, 1998ABSTRACT: Recovery from primary infection of Theileria annulata results in the development of a persistent carrier state in the vertebrate host. The carrier state is of great importance in the maintenance of the life cycle by alternate tick/cattle challenge and both contributes to and may be necessary for maintenance of immunity. Therefore, an accurate
T, Ilhan +4 more
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