| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococci (serogroup B) |
0.12 |
0.12 |
0.12 － ? |
Clindamycin (Cleocin)  |
448 |
| Streptococci (serogroup B) |
0.12 |
0.25 |
0.12 － 0.25 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
448 |
| Streptococci (serogroup B) |
0.25 |
0.25 |
0.12 － 0.25 |
Sparfloxacin (AT-4140, Zagam) |
117 |
| Streptococci (serogroup B) |
0.5 |
0.5 |
0.5 － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
117 |
| Streptococci (serogroup B) |
0.5 |
0.5 |
0.5 － ? |
Levofloxacin (Levaquin, Quixin) |
117 |
| Streptococci (serogroup B) |
1 |
1 |
1 － ? |
Ofloxacin (Floxin) |
117 |
| Streptococci (serogroup B) |
2 |
4 |
1 － 4 |
Quinupristin/Dalfopristin (Synercid) |
448 |
| Streptococci (serogroup B) |
>128 |
>128 |
>128 － ? |
D-ofloxacin |
117 |
| Streptococci (serogroup C + β-hemolytic) |
0.03 |
0.06 |
≤0.016 － 0.12 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
0.03 |
0.06 |
≤0.016 － 0.25 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
412 |
| Streptococci (serogroup C + β-hemolytic) |
0.06 |
0.06 |
≤0.008 － 0.5 |
Ceftriaxone (Rocephin) |
412 |
| Streptococci (serogroup C + β-hemolytic) |
≤0.06 |
≤0.06 |
≤0.06 － >8 |
Clindamycin (Cleocin) |
412 |
| Streptococci (serogroup C + β-hemolytic) |
≤0.06 |
≤0.06 |
≤0.06 － >8 |
Clindamycin (Cleocin) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
0.06 |
2 |
≤0.06 － >8 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
0.06 |
2 |
≤0.06 － >32 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
412 |
| Streptococci (serogroup C + β-hemolytic) |
≤0.12 |
≤0.12 |
≤0.12 － 0.25 |
Tigecycline (GAR-936, Tigacyl) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
≤0.12 |
≤0.12 |
≤0.12 － 0.5 |
Cefepime (Maxipime) |
412 |
| Streptococci (serogroup C + β-hemolytic) |
≤0.25 |
≤0.25 |
≤0.25 － 0.5 |
Ceftriaxone (Rocephin) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
0.5 |
0.5 |
0.25 － 1 |
Vancomycin (Vancocyn, Lyphocin) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
0.5 |
1 |
0.06 － >4 |
Levofloxacin (Levaquin, Quixin) |
472 |
| Streptococci (serogroup C + β-hemolytic) |
≤2 |
≤2 |
≤2 － 4 |
Amoxicillin-clavulanate |
412 |
| Streptococci (serogroup C + β-hemolytic) |
>8 |
>8 |
≤2 － >8 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
472 |
| Streptococci (serogroup C) |
≤0.016 |
≤0.016 |
≤0.016 － 0.06 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
246 |
| Streptococci (serogroup C) |
0.016 |
0.06 |
≤0.016 － 0.12 |
Meropenem (Merrem) |
246 |
| Streptococci (serogroup C) |
0.06 |
0.12 |
? － ? |
Clinafloxacin (PD 127391) |
307 |
| Streptococci (serogroup C) |
0.06 |
- |
0.15 － 0.25 |
Teicoplanin (Targocid) |
67 |
| Streptococci (serogroup C) |
0.12 |
- |
0.03 － 0.25 |
Daptomycin + 50 μg/ml Ca++ |
67 |
| Streptococci (serogroup C) |
0.25 |
0.25 |
0.06 － 0.25 |
Quinupristin/Dalfopristin (Synercid) |
246 |