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The sting of Theileria annulata
Trends in Parasitology, 2001Tropical theileriosis is caused by the protozoan parasite Theileria annulata and affects cattle from the Mediterranean to China. The parasite, which is transmitted by ticks, infects leukocytes to form macro- and microschizonts – microschizonts produce merozoites that can infect red blood cells.
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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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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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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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Chemoprophylaxis of Theileria annulata and Theileria parva infections of calves with buparvaquone
Veterinary Parasitology, 1998A clinical trial testing the prophylactic effect of a 5 mg kg-1 dose of buparvaquone on either Theileria annulata or Theileria parva experimental infections of calves demonstrated its efficacy for periods of at least seven days. The drug given 1 h or seven days before 50% lethal T.
G M, Wilkie +6 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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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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The pathogenesis of anaemia in Theileria annulata infection
Research in Veterinary Science, 1976Calves infected by a field strain of Theileria annulata developed severe anaemia, which was accompanied by bilirubinaemia and the appearance of free serum autohaemagglutinin antibodies. Animals infected with an agamogenous strain (lacking erythrocytic forms) also became anaemic.
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Genetic exchange and sub-structuring in Theileria annulata populations
Molecular and Biochemical Parasitology, 2007Tropical theileriosis, caused by the tick-transmitted protozoan Theileria annulata, is a major disease of cattle in many regions of the developing world. Development and deployment of current and novel control strategies should take into account the potential diversity of parasite populations and therefore it is important that the nature and basis for ...
William, Weir +6 more
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