Theileria


Also found in: Encyclopedia, Wikipedia.

Theileria

A parasitic protozoan.

Theileria

a genus of protozoan parasites in the family Theileriidae. They are transmitted by ticks, multiply in leukocytes and then invade erythrocytes.

Theileria annulata (syn. Theileria dispar)
found in cattle and water buffalo, transmitted by Hyalomma spp. ticks and causes a clinical disease similar to east coast fever.
Theileria buffali
found in cattle and buffalo in Australia and transmitted by Haemaphysalis longicornis and H. bancrofti. Similar to T. mutans. Only sporadic cases of clinical disease and is seen mostly in splenectomized calves.
Theileria camalensis
found in camels, transmission thought to be by Hyalomma spp. ticks.
Theileria cervi
nonpathogenic, found in splenectomized deer.
Theileria dispar
see Theileria annulata (above).
Theileria hirci
found in sheep and goats. Transmitting vector uncertain but probably the tick Rhipicephalus bursa. Causes a disease similar to east coast fever in cattle.
Theileria lawrenci
found in cattle, buffalo and water buffalo. Transmitted by the tick Rhipicephalus appendiculatus; causes fatal corridor disease.
Theileria mutans
found in cattle, transmitted by ticks including Rhipicephalus and Haemaphysalis spp. and causes a benign bovine theileriasis.
Theileria orientalis
usually benign but can cause severe anemia in imported cattle.
Theileria ornithorhynci
found in platypus.
Theileria ovis
found in sheep and goats, transmitted by ticks of the genera Rhipicephalus, Dermacentor, Haemaphysalis and Ornithodoros spp. It causes a mild form of theileriasis.
Theileria parva
found in cattle, African buffalo and Indian water buffalo; transmitted by Rhipicephalus appendiculatus and possibly other ticks. It causes the widespread and serious disease east coast fever.
Theileria sergenti
doubtful identity; mostly benign in cattle.
Theileria tarandi
found in reindeer, transmitted by Ixodes persulcatus and causes an acute disease.
Theileria taurotragi
mildly pathogenic; found in cattle in Africa, Asia.
Theileria velifera
mildly pathogenic; found in cattle.
References in periodicals archive ?
Theileria (Babesia) equi and Babesia caballi infections in horses in Galicia, Spain.
Primer Specificity Sequence (5' [right Annealing arrow] 3') temperature, oC BAB Babesial/ 60 Theileria spp.
A total of 300 blood samples (horses, 100; donkeys, 100; mules,100) were collected from equines and examined microscopically; Overall, 174 (58%) were positive for Theileria equi whereas prevalencein horses, mules and donkeys was 54%, 64% and 56%, respectively.
Tropical theileriosis is a disease of global economic importance in cattle, caused by the tick borne protozoan parasite Theileria annulata, and transmitted by ticks of the genus Hyalomma (Brown, 1997; Preston, 2001).
DNA amplification was performed with the following Babesia and Theileria primers: forward (BT-1F) = ggttgatcctgccagtagt; reverse (BT-1R): gcctgctgccttcctta [7].
Tick salivary gland extract and interleukin-2 stimulation enhance susceptibility of lymphocytes to infection by Theileria parva sporozoites.
The one of the most significant tick borne disease of horses is equine piroplasmosis, which is caused by Babesia caballi and Theileria equi as Theileria equi infections are more prevalent than Babesia caballi infection and dominant in areas and environments where horses exhibit ticks, particularly the genera Dermacentor, Hyalomma, Rhipicephalus (Sigg et al.
A total of 200 whole blood samples along with thin blood samples smears and 100 samples of ticks from 20 flocks of sheep from different localities of district Lahore with a history of tick infestation , relapse of fever and anemia were screened for the prevalence of Theileria species during spring and summer seasons in 2007.
microti; the WA1 parasite from the index case of such infection (7,8); and Theileria annulata were retrieved from the GenBank database (Figure 1).
Ovine theileriosis is an important tick-borne disease of sheep in the tropical and subtropical regions of the world, caused by Theileria hirci (T.
The Roslin Institute will also provide training to UVAS Department of Parasitology students and faculty staff on Theileria vaccine research.
Tenders are invited for SUPPLY OF BRUCELLA AND THEILERIA VACCINE DURING 2017-18