Funding for this research was provided by:
Federaal Agentschap Voor de Veiligheid Van de Voedselketen (RT15/2 BRACHYSPIRA)
Received: 26 May 2020
Accepted: 4 August 2020
First Online: 14 September 2020
: An approval of the ethical committee for animal experiments of the faculty of veterinary medicine Ghent University was not needed for this study.
: Not applicable.
: The authors declare that they have no competing interests.