1. South Africa Medical Research Council and Water Quality Monitoring Centre, University of Fort Hare Alice Eastern Cape South Africa
2. Applied Environmental and Microbiology Research Group, University of Fort Hare Alice Eastern Cape South Africa
3. Department of Microbiology and BiochemistryUniversity of Fort Hare Alice Eastern Cape South Africa
4. School of Science and Technology, Sefako Makgatho Health Sciences University Ga‐Rankuwa Pretoria South Africa