The Introducing of Choice Antibiotic and New Differential Diagnosis Test for Staph. Epidermidis

In this research, for the first time in Iran, Deferoxamine test for differential diagnosis between Staph. epidermidis and Staph. hominis of other gram­positive cocci is introduced. Besides, the comparative results of the susceptibility rates of Staph. aureus (220 Spp.) and Enterococci ( 110 Spp.) to a new glycopeptide antibiotic (SK&Fl04662) and other 12 antibiotics are presented by Disk-Agar Diffusion Method. Staph. epidermidis species were completely susceptible (100%) and very specific (>90%) to deferoxamine disks (100, 1000, 2000 mcg). All of the gram-positive cocci were resistant to deferoxamine. Staph. epidermidis species were susceptible to moxalactam, ciprofloxacin and Enterococci species were susceptible to moxalactam, mezlocillin and sisomycin. However, Staph. epidermidis and Enterococci were completely susceptible (100%) to SK&F104662 antibiotic and vancomycin.