1. Department of Biomedical Sciences, Faculty of Health Sciences, University of Buea, Buea, Cameroon
2. Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Studies, University of Yaounde 1, Yaoundé, Cameroon
3. Department of Clinical Studies, Faculty of Health Sciences, University of Buea, Buea, Cameroon
4. Department of Public Health, Faculty of Health Sciences, University of Buea, Buea, Cameroon