1. Department of Family Medicine & Rural Health, Faculty of Health Sciences, Walter Sisulu University/Cecilia Makiwane Hospital/East London Hospital Complex, East London, South Africa.
2. School of Science and Technology, Sefako Makgatho Health Sciences University, Ga-Rankuwa, Pretoria, South Africa.
3. Department of Public Health, Faculty of Health Sciences, University of Fort Hare, East London, South Africa.
4. Health Systems Enablement & Innovation Uni, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa.
5. SAMRC Microbial Water Quality Monitoring Centre, Faculty of Science and Agriculture, University of Fort Hare, Alice, South Africa.