the emergence and spread of carbapenemase-producing bacteria, that hydolyze most β-lactams, including carbapenems, are a major concern of public health system worldwide, particularly in the middle east area. since the plasmids harboring resis- tance genes could be spread across other bacterial populations, detection of carbapenemase-producing organisms has become more problematic. these organis...

infectious diseases are one of the most common causes of morbidity and mortality and the spread of resistant microorganisms is playing a significant role in this regard. the purpose of this study was to assess the trend in antimicrobial resistance of gram-positive bacteria at the main referral teaching hospital in tehran during a 4-year period. all patients' biological isolates such as blood, u...