Interpretation tables for antibiogram (diffusion method) Enterobacteriaceae Antibiotic (quantity μg per disk) Diameter of inhibition zone (mm) Resistant Intermediate Sensible Amikacin (30) <<< 15 - 16 >>> Amoxicillin (25) <<< 12 - 19 >>> Amoxicillin+Clavulanic acid(20+10) <<< 14 - 17 >>> Ampicillin (10) <<< 14 - 16 >>> Ampicillin+Sulbactam (10+10) <<< 12 - 14 >>> Apramycin (15) <<< 14 - 16 >>> Azotreonam (30) <<< 16 - 21 >>> Carbenicillin (100) <<< 20 - 22 >>> Cefaclor (30) <<< 15 - 17 >>> Cefamandole (30) <<< 15 - 17 >>> Cefazolin (30) <<< 15 - 17 >>> Cefdinir (5) <<< 17 - 19 >>> Cefepime (30) <<< 15 - 17 >>> Cefetamet (10) <<< 15 - 17 >>> Cefixime (5) <<< 16 - 18 >>> Cefmetazole (30) <<< 13 - 15 >>> Cefonicid (30) <<< 15 - 17 >>> Cefoperazone (75) <<< 16 - 20 >>> Cefotaxime (30) <<< 15 - 22 >>> Cefotetan (30) <<< 13 - 15 >>> Cefoxitin (30) Cefpodoxime (10) <<< <<< 15 18 - 17 20 >>> >>> Cefprozil (30) <<< 15 - 17 >>> Ceftazidime (30) <<< 15 - 17 >>> Ceftibuten (30) <<< 18 - 20 >>> Ceftizoxime (30) <<< 15 - 19 >>> Ceftriaxone (30) <<< 14 - 20 >>> Cefuroxime axetil (30) <<< 15 - 22 >>> Cefuroxime sodium (30) <<< 15 - 17 >>> Cephalotin (30) <<< 15 - 17 >>> Chloramphenicol (30) <<< 13 - 17 >>> Cinoxacin (100) <<< 15 - 18 >>> Ciprofloxacin (5) <<< 16 - 20 >>> Colistin sulphate (25) <<< 9 - 10 >>> Doxacycline (30) <<< 13 - 15 >>> Enoxacin (10) <<< 15 - 17 >>> Enrofloxacin (5) <<< 17 - 21 >>> Fleroxacin (5) <<< 16 - 18 >>> Fosfamycin (200) <<< 13 - 15 >>> Furazolidone (50) <<< 12 - 15 >>> Gentamicin (10) <<< 13 - 14 >>> Grepafloxacin (5) <<< 15 - 17 >>> Imipenem (10) <<< 14 - 15 >>> Kanamycin (30) <<< 14 - 17 >>> Levofloxacin (5) <<< 14 - 16 >>> 1 Lincomycin (10) <<< 13 - 16 >>> Lomefloxacin (10) <<< 19 - 21 >>> Loracarbef (30) <<< 15 - 17 >>> Meropenem (10) <<< 14 - 15 >>> Mezlocillin+Piperacilin (75+100) <<< 18 - 20 >>> Minocycline (30) <<< 15 - 18 >>> Moxalactam (30) <<< 15 - 22 >>> Nalidixic acid (30) <<< 14 - 18 >>> Neomycin (30) <<< 13 - 16 >>> Netilmicin (30) <<< 13 - 14 >>> Nitrofurantoin (300) <<< 15 - 16 >>> Norfloxacin (10) <<< 13 - 16 >>> Ofloxacin (5) <<< 13 - 15 >>> Piperacilin+Tezobactam (100+10) <<< 18 - 20 >>> Spectinomycin (25) <<< 14 - 16 >>> Streptomycin (10) <<< 12 - 14 >>> Sulfonamides (250/300) <<< 13 - 16 >>> Tetracycline (30) <<< 15 - 18 >>> Ticarcillin (100) <<< 15 - 19 >>> Ticarcillin+Clavulanic acid(75+10) <<< 15 - 19 >>> Tobramycin (10) <<< 13 - 14 >>> Trimethoprim (5) <<< 11 - 15 >>> Trimethoprim+Sulfamethoxazole(25) <<< 11 - 15 >>> Actinobacillus & Haemophillus Antibiotic (quantity μg per disk) Diameter of inhibition zone (mm) Resistant Intermediate Sensible Amoxicillin (25) <<< 12 - 19 >>> Amoxicillin+Clavulanic acid(20+10) <<< 19 - 20 >>> Ampicillin+Sulbactam (10+10) <<< 19 - 20 >>> Ampicillin (10) <<< 19 - 21 >>> Azithromycin (15) <<< 12 - 12 >>> Aztreonam (30) <<< 26 - 26 >>> Cefaclor (30) <<< 17 - 19 >>> Cefdinir (5) <<< 20 - 20 >>> Cefepime (30) <<< 26 - 26 >>> Cefetamet (10) <<< 15 - 17 >>> Cefixime (5) <<< 21 - 21 >>> Cefotaxime (30) <<< 26 - 26 >>> Cefonicid (30) <<< 17 - 19 >>> Cefpodoxime (10) <<< 21 - 21 >>> Cefprozil (30) <<< 15 - 17 >>> Ceftazidime (30) <<< 26 - 26 >>> Ceftizoxime (30) <<< 26 - 26 >>> Ceftriaxone (30) <<< 26 - 26 >>> Ceftibuten (30) <<< 28 - 28 >>> Cefuroxime axetil (30) <<< 17 - 19 >>> Cefuroxime sodium (30) <<< 17 - 19 >>> Chloramphenicol (30) <<< 26 - 28 >>> Ciprofloxacin (5) <<< 21 - 21 >>> Chlarithromycin (15) <<< 11 - 12 >>> 2 Erythromycin (15) <<< 14 - 22 >>> Fleroxacin (5) <<< 19 - 19 >>> Gentamicin (10) <<< 13 - 14 >>> Grepafloxacin (5) <<< 24 - 24 >>> Imipenem (10) <<< 16 - 16 >>> Kanamycin (30) <<< 14 - 17 >>> Levofloxacin (5) <<< 17 - 17 >>> Lincomycin (10) <<< 13 - 16 >>> Lomefloxacin (10) <<< 22 - 22 >>> Loracarbef (30) <<< 16 - 18 >>> Meropenem (10) <<< 20 - 20 >>> Neomycin (30) <<< 13 - 16 >>> Ofloxacin (5) <<< 16 - 16 >>> Oxitetracycline (30) <<< 26 - 28 >>> Oxacillin (5) <<< 11 - 13 >>> Penicillin (10 U) <<< 12 - 19 >>> Rifampin (5) <<< 17 - 19 >>> Spectinomycin (25) <<< 14 - 16 >>> Streptomycin (10) <<< 12 - 14 >>> Tetracycline (30) <<< 26 - 28 >>> Tilmicosin (15) <<< 14 - 17 >>> Trimethoprim+Sulfamethoxazole (25) <<< 11 - 15 >>> Trovafloxacin (10) <<< 22 - 22 >>> Tylosin (30) <<< 14 - 17 >>> Pasteurellaceae Antibiotic (quantity μg per disk) Diameter of inhibition zone (mm) Resistant Intermediate Sensible Amoxicillin (25μg) <<< 12 - 19 >>> Ampicillin (10) <<< 19 - 21 >>> Cephalotin (30) <<< 15 - 17 >>> Enrofloxacin (5) <<< 17 - 21 >>> Erythromycin (15) <<< 14 - 22 >>> Gentamicin (10) <<< 13 - 14 >>> Lincomycin (10) <<< 13 - 16 >>> Neomycin (30) <<< 13 - 16 >>> Oxitetracycline (30) <<< 26 - 28 >>> Penicillin (10) <<< 12 - 19 >>> Spectinomycin (25) <<< 14 - 16 >>> Streptomycin (10) <<< 12 - 14 >>> Tetracycline (30) <<< 26 - 28 >>> Tiamulin+Tetra (50) <<< 15 - 20 >>> Tilmicosin (15) <<< 14 - 17 >>> Trimethoprim+Sulfamethoxazole (25) <<< 11 - 15 >>> Tylosin (30) <<< 14 - 17 >>> Pseudomonas Antibiotic (quantity μg per disk) Diameter of inhibition zone (mm) Resistant Intermediate Sensible Amoxicillin (25) <<< 12 - 19 >>> Apramycin (15) <<< 14 - 16 >>> 3 Cefotetan (30) <<< 13 - 15 >>> Colistin sulphate (25) Enrofloxacin (5) <<< 9 - 10 >>> <<< 17 - 21 >>> Flumequine (30) <<< 15 - 23 >>> Furazolidone (50) <<< 12 - 15 >>> Gentamicin (10) <<< 13 - 14 >>> Lincomycin (10) <<< 13 - 16 >>> Neomycin (30) <<< 13 - 16 >>> Norfloxacin (10) <<< 13 - 16 >>> Oxitetracycline (30) <<< 26 - 28 >>> Penicillin (10 U) <<< 12 - 19 >>> Spectinomycin (25) <<< 14 - 16 >>> Tetracycline (30) <<< 26 - 28 >>> Trimethoprim+Sulfamethoxazole (25) <<< 11 - 15 >>> Staphylococcus Antibiotic (quantity μg per disk) Diameter of inhibition zone (mm) Resistant Intermediate Amikacin (30) <<< 15 - Amoxicillin (25) <<< 12 Amoxicillin+Clavulanic acid(20+10) <<< 19 Ampicillin (10) <<< Ampicillin+Sulbactam (10+10) Azithromycin (15) Sensible 16 >>> - 19 >>> - 20 >>> 28 - 29 >>> <<< 12 - 14 >>> <<< 14 - 17 >>> Cefaclor (30) <<< 15 - 17 >>> Cefamandole (30) <<< 15 - 17 >>> Cefazolin (30) <<< 15 - 17 >>> Cefdinir (5) <<< 17 - 19 >>> Cefepime (30) <<< 15 - 17 >>> Cefmetazole (30) <<< 13 - 15 >>> Cefonicid (30) <<< 15 - 17 >>> Cefoperazone (75) <<< 16 - 20 >>> Cefotaxime (30) <<< 15 - 22 >>> Cefotetan (30) <<< 13 - 15 >>> Cefoxitin (30) <<< 15 - 17 >>> Cefpodoxime (10) <<< 18 - 20 >>> Cefprozil (30) <<< 15 - 17 >>> Ceftazidime (30) <<< 15 - 17 >>> Ceftibuten (30) <<< 18 - 20 >>> Ceftizoxime (30) <<< 15 - 19 >>> Ceftriaxone (30) <<< 14 - 20 >>> Cefuroxime axetil (30) <<< 15 - 22 >>> Cefuroxime sodium (30) <<< 15 - 17 >>> Cephalotin (30) <<< 15 - 17 >>> Chloramphenicol (30) <<< 13 - 17 >>> Ciprofloxacin (5) <<< 16 - 20 >>> Clarithromycin (15) <<< 14 - 17 >>> Clindamicin (2) <<< 15 - 20 >>> Dalfopristin (15) <<< 16 - 18 >>> Dirithromycin (15) <<< 16 - 18 >>> Doxycycline (30) <<< 13 - 15 >>> 4 Enoxacin (10) <<< 15 - 17 >>> Erythromycin (15) <<< 14 - 22 >>> Fleroxacin (5) <<< 18 - 5 >>> Flumequine (30) <<< 15 - 23 >>> Gentamicin (10) <<< 13 - 14 >>> Grepafloxacin (5) <<< 15 - 17 >>> Imipenem (10) <<< 14 - 15 >>> Kanamycin (30) <<< 14 - 17 >>> Levofloxacin (5) <<< 14 - 16 >>> Lincomycin (10) <<< 13 - 16 >>> Lomefloxacin (10) <<< 19 - 21 >>> Loracarbef (30) <<< 15 - 17 >>> Meropenem (10) <<< 14 - 15 >>> Methicillin (5) <<< 10 - 13 >>> Minocycline (30) <<< 15 - 18 >>> Moxalactam (30) <<< 15 - 22 >>> Nafcillin (1) <<< 11 - 12 >>> Netilmicin (30) <<< 13 - 14 >>> Neomycin (30) <<< 13 - 16 >>> Nitrofurantoin (300) <<< 15 - 16 >>> Norfloxacin (10) <<< 13 - 16 >>> Ofloxacin (5) <<< 13 - 15 >>> Oxacillin (1) <<< 11 - 12 >>> Oxitetracycline (30) <<< 26 - 28 >>> Penicillin (10 U) <<< 28 - 29 >>> Piperacilin+Tezobactam (100+10) <<< 17 - 18 >>> Quinupristin (15) <<< 11 - 15 >>> Rifampin (5) <<< 17 - 19 >>> Sparfloxacin (5) <<< 16 - 18 >>> Streptomycin (10) <<< 12 - 14 >>> Sulfonamides (250/300) <<< 13 - 16 >>> Teicoplanin (30) <<< 11 - 13 >>> Tetracycline (30) <<< 15 - 18 >>> Ticarcillin+Clavulanic acid(75+10) <<< 22 - 23 >>> Tiamulin+Tetra (50) <<< 15 - 20 >>> Tilmicosin (15) <<< 14 - 17 >>> Tobramycin (10) <<< 13 - 14 >>> Trimethoprim (5) <<< 11 - 15 >>> Trimethoprim+Sulfamethoxazole(25) <<< 11 - 15 >>> Tylosin (30) <<< 14 - 17 >>> Vancomycin (30) <<< 15 - 15 >>> Streptococcus Antibiotic (quantity μg per disk) Diameter of inhibition zone (mm) Resistant Intermediate Sensible Cefepime (30) <<< 24 - 25 >>> Cefotaxime (30) <<< 26 - 27 >>> Ceftriaxone (30) <<< 25 - 26 >>> Chloramphenicol (30) <<< 18 - 20 >>> Clarithromycin (15) <<< 17 - 20 >>> Clindamycin (2) <<< 16 - 18 >>> 5 Dalfopristin (15) <<< 16 - 18 >>> Dirithromycin (15) <<< 14 Erythromycin (15) <<< 16 - 17 >>> - 20 Flumequine (30) <<< >>> 15 - 23 >>> Gentamicin (10) Grepafloxacin (5) <<< 13 - 14 >>> <<< 16 - 18 >>> Levofloxacin (5) <<< 14 - 16 >>> Lincomycin (10) <<< 13 - 16 >>> Methicillin (5) <<< 10 - 13 >>> Neomycin (30) <<< 13 - 16 >>> Ofloxacin (5) <<< 13 - 15 >>> Oxitetracycline (30) <<< 26 - 28 >>> Penicillin (10 U) <<< 20 - 27 >>> Quinupristin (15) <<< 16 - 18 >>> Streptomycin (10) <<< 12 - 14 >>> Tetracycline (30) <<< 19 - 22 >>> Tiamulin+Tetra (50) <<< 15 - 20 >>> Tilmicosin (15) <<< 14 - 17 >>> Trimethoprim+Sulfamethoxazole(25) <<< 11 - 15 >>> Trovafloxacin (10) <<< 16 - 18 >>> Tylosin (30) <<< 14 - 17 >>> Vancomycin (30) <<< 17 - 17 >>> 6