Funding for this research was provided by:
University of Pretoria
National Health Laboratory Services
South Africa National Research Fund (RTF14011560804)
Article History
Received: 20 April 2018
Accepted: 17 October 2018
First Online: 3 November 2018
Ethics approval and consent to participate
: Prior to the commencement of this investigation, ethical approval was obtained from the Animal Ethics Committee, Faculty of Veterinary Science, University of Pretoria (H010–13) and the University of Pretoria, Faculty of Health Sciences Research Ethics Committee (No. 295/2013).
: Not applicable.
: The authors declare that they have no competing interests.
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