1. SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Private Bag X1314, Alice, Eastern Cape Province 5700, South Africa
2. Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, Eastern Cape Province 5700, South Africa
3. Academic and Research Division, University of Fort Hare, Private Bag X1314, Alice, Eastern Cape Province, South Africa