Received: 30 July 2020
Accepted: 2 December 2020
First Online: 11 December 2020
Ethics approval and consent to participate
: All animal procedures and housing conditions were approved by the Animal Research Ethics Committee of the University of KwaZulu-Natal, which conforms to the principles and guidelines of Canadian Council on Animal Care (Ethics No: AREC/024/018D).
: Not applicable.
: The authors declare that they have no competing interests.