study of antibiotic resistance pattern of staphylococcus aureus strains isolated from blood cultures in tabriz shahid madani hospital

background staphylococcus aureus (s aureus) is one of the important agents of many infections in hospitals and society. increasing s aureus resistance to antibacterial drugs is one of the major health concerns, therefore studying antibiotic resistance of s aureus is very important and it has a main role in preventing creation of resistant strains. microorganisms in 71 cases (%14) of blood cultures grew. eighteen point (three percent) of positive cultures were related to s aureus. four cases (%31) of s aureus positive patients were females whereas 9 cases (%69) were males and the age average of patients was over than 40 years. the most of resistant cases (%31) were related to methicillin and ceftriaxon.