Tehran University of Medical Sciences Iranian Journal of Microbiology 2008-3289 2 3 2010 09 15 165 167 EN A Dezfulian Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. MT Salehian Department of General Vascular Surgery, Taleghani Hospital, Tehran, Iran. V Amini Department of General Vascular Surgery, Taleghani Hospital, Tehran, Iran. H Dabiri Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. M Azimirad Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. MM Aslani Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran AND Department of Microbiology, Pasteur Institute of Iran. MR Zali Research Center for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. I Fazel Department of General Vascular Surgery, Taleghani Hospital, Tehran, Iran. 2015 10 01 We report a catalase-negative Staphylococcus aureus isolated from a 56-year-old male diabetic patient with foot ulcer who attended our surgery ward. Species identification was confirmed by Gram staining, standard biochemical tests and PCR amplification of the nuc and fem genes. Antibiotic susceptibility showed that the strain was sensitive to imepenem, chloramphenicol, amoxicillin, vancomycin and resistant to oxacillin, penicillin, ceftriaxone, erythromycin, clindamycin, and amikacin. Clinicians and microbiologists must be encouraged to identify and report these atypical strains and the infections associated with them in order to establish their role in pathogenesis. https://ijm.tums.ac.ir/index.php/ijm/article/view/66 https://ijm.tums.ac.ir/index.php/ijm/article/download/66/66