Theileria


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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 ?
Prevalence of Theileria annulata infection in Hyalomma anatolicum anatolicum in Punjab state, India.
Two strains of nymphal ticks, developed at ILRI to have different Theileria parva susceptibilities, were allowed to feed simultaneously on infected calves and compared.
In natural theileria infections, parasites invade to lymphoid cells and at a later stage of infection invade to the erythrocytes and the infection causes fever, anemia and icterus and also it can be caused to dead [10].
Defining the complete transcriptome of the Theileria parva schizont using Lynx's MPSS(TM) technology will provide an important boost to ILRI's efforts to develop a recombinant vaccine against this stage of the parasite through exploitation of the T.
EP is caused by the tick-transmitted microbe Theileria equi (also known as "Babesia equi").
T- and Blymphoid cell population in calves immunized against theileria annulata, veterinary parasitology, 13(2): 109-114.
Bovine leukocyte antigen major histocompatibility complex class II DRB3 * 2703 and DRB * 1501 alleles are associated with variation in levels of protection against Theileria parva challenge following immunization with sporozoite p67 antigen.
Venter announced he will donate the cash prize award to TIGR to help fund sequencing of the genome of the parasite Theileria parva, which causes the cattle disease East Coast Fever (ECF).
Theileria equi (incertae sedis; Piroplasma equi Laveran, 1901) is one of the etiologic agents of equine piroplasmosis.
Laboratory rearing of Theileria annulata--free Hyalomma anatolicum anatolicum ticks.
Venter announced that he will be donating his share of the prize -- $100,000 -- to The Institute for Genomic Research (TIGR) to help fund sequencing of the genome of the parasite Theileria pariva, which causes a deadly cattle disease which is widespread in Africa.