International cooperation:
- Koret School of Veterinary Medicine, The University of Jerusalem, Rehovot, Israel – Prof. N. Shpigel;
- Department of Animal Sciences, Faculty of Agricultural, Food and Environmental Quality Sciences, The Hebrew University of Jerusalem, Rehovot 76100, Israel. (Prof. Rina MEIDAN);
Native cooperation:
- Research Station in Kosewo Górne – Institute of Parasitology, Polish Academy of Sciences (M. Bogdaszewski);
- University of Warmia and Mazury in Olsztyn, Faculty of Animal Bioengineering (Prof. W. Kordan);