Parasitic diseases, like babesiosis and theileriosis are transmitted by ticks: their occurrence is therefore linked to the size of the tick stock and the seasonality of the vectors. Babesia divergens bovine babesiosis transmitted by Ixodes ricinus is widespread and often reported in France. Serological prevalence is high, ranging from 20 to 80% according to the farms. Clinical incidence is low:...

tropical theileriosis is caused by infection of bovine myeloid mononuclear cells (monocytes and macrophages) and lymphoid cells (b lymphocytes) as well as red blood cells by the protozoan parasite theileria annulata. the disease is transmitted by ticks of the genus hyalomma. the clinical signs of theileriosis in stages appear from mild symptoms to serious, including fever and anemia to severe i...

A survey conducted by the Office International des Epizooties (OIE) on the occurrence of blood parasitic diseases amongst its Member Countries identifies protozoan diseases (trypanosomosis, theileriosis, babesiosis) and rickettsial (anaplasmosis, cowdriosis and ehrlichiosis) as being of economic importance. Each of the diseases listed above had a variable economic impact in the responding count...

East Coast fever caused by Theileria parva parva has been eradicated from South Africa, but tick-borne infections with other species of Theileria still occur, particularly in cattle and African buffalo (Syncerus caffer). One such infection is Corridor disease caused by T. parva lawrencei, which is controlled by restricting the movement of African buffalo. Other species reviewed are T. parva bov...

Ticks may transmit pathogens to ruminants worldwide, creating diseases such as anaplasmosis, babesiosis, ehrlichiosis and theileriosis. In Europe, the most important tick vector is Ixodes ricinus and the most widespread tick-borne infection in animals is Anaplasma phagocytophilum. This infection causes tick-borne fever (TBF) in ruminants, a disease which may not only cause suboptimal growth, bu...

Received at:17/12/2014 Accepted: 8/1/2015 Bovine theileriosis is a destructive disease that affected cattle of all ages, breeds and sex and leads to severe losses in production and reproduction. To assess the antioxidant status and oxidative stress in bovine theileriosis due to Theileria annulata, blood samples were collected from 17 clinically infected cattle referred to the Veterinary Teachin...

A population-based study was carried out on the Ankole ranching scheme in south-west Uganda with the aim of determining the endemic status of Theileria parva infections. For this purpose, the age-related sero-prevalence of T. parva and the specific calf mortality associated with the parasite were assessed. Blood samples were collected from 931 Ankole calves of up to 12 months of age from 81 ran...

Fifty-nine Hereford cattle susceptible to tick-borne diseases were used as tracer animals to assess the tick challenge and pathogenicity of Theileria parva under field conditions in Zimbabwe. They were moved periodically in groups of five to three commercial farms (one group consisted of four) during seasons of Rhipicephalus appendiculatus nymphal and adult activity. All tracer cattle were herd...