The Occurrence of Canine Piroplasmosis in the Occupied Eastern Areas

Dermacentor pictus and Hyalomma marginatum are identified as new vectors of Piroplasma canis. Corresponding to the dispersion of Dermacentor pictus, canine piroplasmosis may occur in Central Russia. In France, the tick probably is the vector of so called winter piroplasmosis of the dog. Hyalomma marginatum has a lesser significance as vector of canine piroplasmosis, since it rarely afflicts the dog in its imago stage. An attempt at transmission with Ixodes ricinus had negative results, also two tests each with Rhipicephalus bursa and Hyalomma dromedarii. In the case of a premune bitch, Piroplasma canis was not transmitted to the young inter uterum.