EN
Dog babesiosis is a severe disease with symptoms of hemolitic anemia. The etiological factor of this disease are protozoa organisms from the family Babesidae. Molecular biology techniques indicate that the genetic structure of these parasites is extremely diversified. On the basis of the analysis of Babesia DNA, new variants of the protozoa were detected. It is possible that these new variants of Babesia are characterized by high virulence for dogs and high resistance to drugs used in babesiosis therapy.