S. O. Onemu1, A. O. Ogbimi2 and E. A. Ophori2*
1Department of Medical Microbiology, University of Benin Teaching Hospital, P. M. B. 1111, Benin City, Edo State, Nigeria.
2Department of Microbiology, Faculty of Life Sciences, University of Benin, P. M. B. 1154, Benin City, Edo State, Nigeria.
