In antimicrobial susceptibility testing, the antimicrobials chloramphenicol
(30 mg/disc), oxacillin (1 mg/disc), vancomycin (30 mg/
disc), tetracycline (30 mg/disc), ciprofloxacin (5 mg/disc) and penicillin
G (UI/disc) were used according to the recommendations of
the Clinical and Laboratory Standards Institute (CLSI, 2012).