R is caused by Neospora caninum, Apicomplexa
protozoarian that infects cattle due to consumption of contaminated foods with excrements of canidae, its definitive host, and by transplacentary way.
It belongs to the subphylum Apicomplexa
, class Sporozoa, and exists in nature in 3 forms: the oocyst (which releases sporozoites), the tissue cyst (which contains and may release bradyzoites), and the tachyzoite.
Besides bolstering the theory that endosymbiotic events were common in evolutionary history, the finding may have medicinal value: The protozoans belong to the group Apicomplexa
, which includes the organisms responsible for malaria and toxoplasmosis.
The approximately 87 species fit into six genera and three families in the phylum Apicomplexa
Malaria is a life threatening disease caused by four species of Plasmodium belonging to apicomplexa
Dermo is also a protozoan, but in the phylum Apicomplexa
The phylum Apicomplexa
comprises intracellular protozoa that include human pathogens that cause diseases such as babesiosis, malaria, and toxoplasmosis (1).
Chapters are devoted to 15 types of organisms: gastrointestinal protozoa, kinetoplastids, apicomplexa
, and free-living protozoa.
Key words: Synaptomys cooperi; southern bog lemming; Rodentia; coccidia; Eimeria; Apicomplexa