EN
Toxoplasmosis is one of the most frequent parasitic zoonosis. Human infection occurs primarily by ingesting raw or undercooked meat containing the tissue cysts. The paper concerns the prevalence of Toxoplasma gondii infection in some farm animals comprising the main reservoir of the parasite. Biology, sources of infection, immune mechanisms, clinical signs in animals, and the role of the cat in toxoplasmosis epidemiology are described. The presented information is based on data from literature and from the author’s own observations.