Volume 8, Number 6—June 2002
Research
Streptococcus pneumoniae, Brooklyn, New York: Fluoroquinolone Resistance at our Doorstep
John Quale*, David Landman*
, Jayashree Ravishankar*, Carlos Flores*, and Simona Bratu*
, Jayashree Ravishankar*, Carlos Flores*, and Simona Bratu*
Table
Antibiotic susceptibility rates of 138 Streptococcus pneumoniae isolates
| Antibiotic | MIC50 (μg/mL) | MIC90 (μg/mL) | Range (mg/mL) | Susceptible (%) | Intermediate (%) | Resistant (%) |
|---|---|---|---|---|---|---|
| Penicillin | 0.03 | 2 | 0.008-4.0 | 67 | 16 | 17 |
| Ceftriaxone | 0.015 | 1 | 0.004-2.0 | 87 | 11 | 2 |
| Cefepime | 0.06 | 1 | 0.03-4.0 | 81 | 12 | 7 |
| Meropenem | 0.015 | 0.5 | 0.004-2.0 | 82 | 14 | 4 |
| Erythromycin | 0.125 | 8 | ≤0.015->256.0 | 75 | 2 | 23 |
| Clindamycin | 0.125 | 0.5 | 0.03->256.0 | 93 | 1 | 6 |
| Ciprofloxacin | 2 | 4 | 0.5->32.0 | 34 | 43 | 23 |
| Levofloxacin | 1 | 2 | 0.5->8.0 | 96.4 | 2.2 | 1.4 |
| Chloramphenicol | 4 | 4 | ≤ 0.5-64.0 | 90 | 10 | |
| Linezolid | 0.5 | 1 | ≤ 0.125-2.0 | 100 | ||
| Quinupristin-dalfopristin | 0.5 | 0.5 | 0.125-1.0 | 100 |
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