1. Landmark University,Department of Microbiology,Omu-Aran,Kwara State,Nigeria
2. Federal University Oye Ekiti,Department of Microbiology,Oye Ekiti,Ekiti State,Nigeria
3. Afe Babalola University Multi-System Hospital,Department of Surgery,Ado-Ekiti,Ekiti State,Nigeria
4. University of Benin Teaching Hospital,Department of Medical Microbiology,Benin City,Edo State,Nigeria