TABLE 2.
Detailed information on tested antimicrobial agents
| Antimicrobial | Suppliera | Product no. | Dilution range (mg/liter) | Breakpoint (mg/liter)b | Stock concn (mg/ml) (solvent)c |
|---|---|---|---|---|---|
| Amoxicillin | Centrafarm | 14029596 | 0.25–128 | ≤4 | 8.89 (PBS) |
| Doxycycline | Sigma | D3447 | 0.016–8 | ≤4 | 44.4 (DMSO) |
| Ceftriaxone | Sigma | PHR1382 | 0.016–8 | ≤8 | 8.89 (PBS) |
| Azithromycin | Sigma | PHR1088 | 0.0004–0.2048 | ≤2 | 5.56 (DMSO) |
a
The suppliers were Centrafarm (Etten-Leur, The Netherlands) and Sigma-Aldrich (St. Louis, MO, USA).
b
Breakpoints are according CLSI guidelines (16).
c
PBS, phosphate-buffered saline; DMSO, dimethyl sulfoxide.