Table 1: Antibiotic disks and their potencies used in the experiment.

Antibiotics Penicillin (P) Ampicillin (AMP) Levofloxacin (LEV) Tobramycin (TOB) Gentamicin (CN) Imipenem (IPM) Piperacillin (PRL) Amikacin (AK)
Potencies (µg) 10 10 5 10 10 10 75 30
Antibiotics Ciprofloxacin (CIP) Meropenem (MEM) Cefixime (CFM) Aztreonam (ATM) Cefpodoxime (CPD) Ceftriaxone (CRO) Cefotaxime (CTX) Ceftazidime (CAZ)
Potencies (µg) 5 10 5 30 10 30 30 30