Article History
Received: 5 April 2018
Accepted: 26 June 2018
First Online: 19 September 2018
Ethics approval and consent to participate
: All experimental data used herein have been published previously and cited accordingly. Ethics approval is therefore not applicable.
: Not applicable
: The authors declare that they have no competing interests. DS is employed by CEVA Santé Animale, France, who sponsored part of this study (staining evaluation).
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.