1. One Health Research Group, Department of Biochemistry and Microbiology, Faculty of Science, Agriculture and Engineering, University of Venda, Thohoyandou 0950, Limpopo Province, South Africa
2. Water and Health Research Centre, University of Johannesburg, Doornfontein 2094, Gauteng Province, South Africa
3. Dept of Environmental Health, Faculty of Sciences, Tshwane University of Technology, Pretoria 0183, Gauteng Province, South Africa
4. Research Office, Faculty of Health Sciences, University of Pretoria, Pretoria 0002, Gauteng Province, South Africa