Document Detail

In vitro activity of gemifloxacin (SB-265805) compared to eleven other antimicrobial agents against streptococcal isolates, excluding Streptococcus pneumoniae.
MedLine Citation:
PMID:  11399019     Owner:  NLM     Status:  MEDLINE    
The purpose of the study presented here was to determine the in vitro activity of gemifloxacin compared with that of 11 other antimicrobial agents (5 of them quinolones) against 400 isolates of beta-haemolytic and viridans group streptococci. The minimum inhibitory concentration values for gemifloxacin against 90% of the streptococci tested were as follows: Lancefield groups A, C and G, 0.06 microg/ml; Lancefield group B, Streptococcus mitis, Streptococcus mutans and Streptococcus bovis, 0.125 microg/ml; and Streptococcus milleri, 0.03 microg/ml. Resistance to penicillin, ampicillin and erythromycin was found mainly in the Streptococcus mitis isolates; tetracycline showed variable results, and no vancomycin resistance was encountered. Higher rates of ciprofloxacin resistance were identified in the Streptococcus bovis, mitis and mutans isolates. In conclusion, gemifloxacin was the most active quinolone tested followed by trovafloxacin, sparfloxacin, grepafloxacin, ciprofloxacin and levofloxacin, especially against isolates resistant to beta-lactam agents, macrolides and tetracycline.
M Kerawala; J E Ambler; P Y Lee; Y J Drabu
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology     Volume:  20     ISSN:  0934-9723     ISO Abbreviation:  Eur. J. Clin. Microbiol. Infect. Dis.     Publication Date:  2001 Apr 
Date Detail:
Created Date:  2001-06-11     Completed Date:  2001-10-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8804297     Medline TA:  Eur J Clin Microbiol Infect Dis     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  271-5     Citation Subset:  IM    
Department of Microbiology, North Middlesex Hospital NHS Trust, London, UK.
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MeSH Terms
Anti-Bacterial Agents / pharmacology*
Anti-Infective Agents / pharmacology*
Microbial Sensitivity Tests
Naphthyridines / pharmacology*
Streptococcus / drug effects*
Streptococcus pneumoniae / drug effects*
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Anti-Infective Agents; 0/Fluoroquinolones; 0/Naphthyridines; 175463-14-6/gemifloxacin

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