Osama Mohammed M.Khair***3H. M. M. salh*1 , W. I. E. K. A. A. E. NASAL CARRIAGE OF METHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS AMONG MEDICAL STAFF AT OMDURMAN TEACHING HOSPITAL. Journal of Biomedical and Pharmaceutical Research, v. 4, n. 1, 28 Feb. 2015.