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