Anaplasma marginale is a rickettsial organism that infects the erythrocytes of cattle and is transmitted by ticks.
The apicomplexan protozoan Besnoitia infects cattle and goats in tropical and subtropical countries, especially in Africa.
Cattle around the world are infected at some stage in their lives with Cryptosporidium, and intracellular parasite of enterocytes.
Coccidian protozoa of the genus Eimeria are common in cattle around the world. Many species are considered to be of little or no clinical significance but in Canada E. zuernii and...
Neospora caninum is a protozoan parasite, closely related and in several respects similar to Toxoplasma gondii, that is a major cause of abortion in cattle around the world and an ...
Species of the intracellular, apicomplexan protozoan Sarcocystis occur in mammals, reptiles and birds around the world, including in Canada.
Toxoplasma gondii is a zoonotic intracellular apicomplexan protozoan parasite of mammals and birds that occurs around the world, including in Canada.