| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Borrelia afzelii (PKo) |
- |
- |
0.5 － ? |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin)  |
402 |
| Borrelia afzelii (PKo) |
- |
- |
1 － ? |
Spectinomycin (Trobicin) |
402 |
| Borrelia afzelii (PKo) |
- |
- |
16 － ? |
Cefaclor (Ceclor, Ceclor CD) |
402 |
| Borrelia afzelii (PKo) |
- |
- |
32 － ? |
Tobramycin (Tobrex, Nebcin) |
402 |
| Borrelia afzelii (PKo) |
- |
- |
64 － ? |
Sulbactam |
402 |
| Borrelia afzelii (VS461) |
- |
- |
≤0.0002 － ? |
Cethromycin (ABT-773) |
261 |
| Borrelia afzelii (VS461) |
- |
- |
≤0.0002 － ? |
Telithromycin (HMR 3647, RU-66647, Ketek) |
261 |
| Borrelia afzelii (VS461) |
- |
- |
0.0004 － ? |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
261 |
| Borrelia afzelii (VS461) |
- |
- |
0.0019 － ? |
Clarithromycin (Biaxin) |
261 |
| Borrelia afzelii (VS461) |
- |
- |
0.0039 － ? |
Roxithromycin |
261 |
| Borrelia afzelii (Vs461) |
- |
- |
0.0078 － ? |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
261 |
| Borrelia afzelii (VS461) |
- |
- |
0.0625 － ? |
Ceftriaxone (Rocephin) |
261 |