Funding for this research was provided by:
Vlaamse Interuniversitaire Raad (ZEIN 2015 PR 409 TEAM 2015)
Received: 21 September 2019
Accepted: 23 September 2020
First Online: 1 October 2020
Ethics approval and consent to participate
: Ethical approval for animals sampling was sought from the Ethical Committee of Sokoine University of Agriculture. Written consent to participate was obtained from farmers and veterinarians before sampling of tissues from slaughtered pigs.
: All authors read and approved the final manuscript. Consent for publication has been obtained from all authors.
: The authors declare that they have no competing interests.