Coexistence of tick-borne pathogens in game animals and ticks in western Poland

Molecular studies enabling the recognition of the role of game and ticks in the circulation of patho- gens transmitted by ticks and detection of coinfections in order to estimate a risk which a contact with tissues of roe deer, red deer and wild boar from north-western Poland brings were the aim of this research. DNA isolated from the blood and spleen of game and from Ixodes ricinus were the study materials. The results shows that Capreolus capreolus and Cervus elaphus play an important role in the life cycle of Anaplasma phagocytophilum, two Bartonella species, Theileria and Babesia spp. Whereas in the isolates obtained from 50 representatives of Sus scrofa, the DNA of only one pathogen, A. phagocytophilum occurred. 63.5% of 74 PCR+ isolates from Capreolus capreolus showed a double coinfection and three isolates - triple. In the tissues of Cervus elaphus, the coinfec - tions were triple in 38% of individuals, double in 40%, single in 84%.