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Volume 8, Number 6—June 2002

Research

Streptococcus pneumoniae, Brooklyn, New York: Fluoroquinolone Resistance at our Doorstep

John Quale*, David Landman*Comments to Author , Jayashree Ravishankar*, Carlos Flores*, and Simona Bratu*
Author affiliations: *State University of New York Downstate Medical Center, Brooklyn, New York, USA;

Main Article

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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