Received: 1 June 2021
Accepted: 4 October 2021
First Online: 10 October 2021
: The authors obtained written informed consent to use the animals in your study from the owners of the animals (farmed red deer from Institute of Parasitology of the Polish Academy of Sciences, Research Station in Kosewo Górne; wild red deer from Strzałowo Forest District).
: Not applicable.
: The authors declare no conflict of interest.