Funding for this research was provided by:
Poliomyelitis Research Foundation (11/17)
National Research Foundation
Carnegie Corporation of New York
University of Cape Town
Received: 29 November 2017
Accepted: 29 November 2018
First Online: 11 December 2018
Ethics approval and consent to participate
: The work done at the ARC-OVI was covered by appropriate ethics approvals granted by the IAEC and DAFF.The study was approved by the Ethics Committee of the Agricultural Research Council of the Onderstepoort Veterinary Institute (ARC-OVI) in Pretoria, South Africa
: Not applicable.
: The authors declare that they have no competing interests.
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