| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococci (serogroup A) |
0.25 |
0.5 |
0.12 － 1 |
Sparfloxacin (AT-4140, Zagam)  |
117 |
| Streptococci (serogroup A) |
0.5 |
0.5 |
0.12 － 2 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
117 |
| Streptococci (serogroup A) |
0.5 |
0.5 |
0.25 － 2 |
Levofloxacin (Levaquin, Quixin) |
117 |
| Streptococci (serogroup A) |
0.5 |
1 |
0.12 － 2 |
Quinupristin/Dalfopristin (Synercid) |
448 |
| Streptococci (serogroup A) |
1 |
1 |
0.5 － 2 |
Levofloxacin (Levaquin, Quixin) |
19 |
| Streptococci (serogroup A) |
1 |
1 |
0.5 － 2 |
Ofloxacin (Floxin) |
117 |
| Streptococci (serogroup A) |
1 |
2 |
0.5 － 4 |
Ofloxacin (Floxin) |
19 |
| Streptococci (serogroup A) |
>128 |
>128 |
32 － >128 |
D-ofloxacin |
117 |
| Streptococci (serogroup A,B,C,G) |
0.5 |
1 |
0.5 － 1 |
Sparfloxacin (AT-4140, Zagam) |
374 |
| Streptococci (serogroup A,B,C,G) |
0.5 |
1 |
0.5 － 2 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
374 |
| Streptococci (serogroup A,B,C,G) |
1 |
1 |
0.5 － 1 |
Vancomycin (Vancocyn, Lyphocin) |
374 |
| Streptococci (serogroup A–M exc. C,D,L) |
- |
- |
0.00625 － 0.1 |
Nisin |
524 |
| Streptococci (serogroup B + β-hemolytic) |
0.03 |
0.06 |
≤0.016 － 0.12 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
0.03 |
0.06 |
≤0.016 － 0.25 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
412 |
| Streptococci (serogroup B + β-hemolytic) |
0.06 |
0.06 |
≤0.008 － 0.5 |
Ceftriaxone (Rocephin) |
412 |
| Streptococci (serogroup B + β-hemolytic) |
≤0.06 |
≤0.06 |
≤0.06 － >8 |
Clindamycin (Cleocin) |
412 |
| Streptococci (serogroup B + β-hemolytic) |
≤0.06 |
≤0.06 |
≤0.06 － >8 |
Clindamycin (Cleocin) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
0.06 |
2 |
≤0.06 － >8 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
0.06 |
2 |
≤0.06 － >32 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
412 |
| Streptococci (serogroup B + β-hemolytic) |
≤0.12 |
≤0.12 |
≤0.12 － 0.25 |
Tigecycline (GAR-936, Tigacyl) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
≤0.12 |
≤0.12 |
≤0.12 － 0.5 |
Cefepime (Maxipime) |
412 |
| Streptococci (serogroup B + β-hemolytic) |
≤0.25 |
≤0.25 |
≤0.25 － 0.5 |
Ceftriaxone (Rocephin) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
0.5 |
0.5 |
0.25 － 1 |
Vancomycin (Vancocyn, Lyphocin) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
0.5 |
1 |
0.06 － >4 |
Levofloxacin (Levaquin, Quixin) |
472 |
| Streptococci (serogroup B + β-hemolytic) |
≤2 |
≤2 |
≤2 － 4 |
Amoxicillin-clavulanate |
412 |
| Streptococci (serogroup B + β-hemolytic) |
>8 |
>8 |
≤2 － >8 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
472 |
| Streptococci (serogroup B) |
0.03 |
0.03 |
0.03 － ? |
HMR 3004 (RU 64004) |
448 |
| Streptococci (serogroup B) |
0.03 |
0.06 |
0.03 － 0.06 |
Telithromycin (HMR 3647, RU-66647, Ketek) |
448 |