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Antimicrobial Agents and Chemotherapy, May 2001, p. 1463-1466, Vol. 45, No. 5
University of Iowa College of Medicine, Iowa
City, Iowa
Received 14 August 2000/Returned for modification 1 February
2001/Accepted 21 February 2001
The antimicrobial activity of BMS 284756, a novel
des-F(6)-quinolone, was comparatively evaluated against 257 Streptococcus pneumoniae, 198 Haemophilus
influenzae, and 88 Moraxella catarrhalis strains
isolated in Latin America between July and September of 1999 as part of
the SENTRY Antimicrobial Surveillance Program. Nearly 28.0% of
S. pneumoniae strains were nonsusceptible to penicillin. The rank order of quinolone potency versus S. pneumoniae
was BMS 284756 (MIC at which 90% of isolates were inhibited
[MIC90], 0.12 µg/ml) > trovafloxacin
(MIC90, 0.25 µg/ml) > gatifloxacin
(MIC90, 0.5 µg/ml) > levofloxacin and ciprofloxacin
(MIC90, 1 to 2 µg/ml). All S. pneumoniae
strains that were not susceptible to other quinolones were inhibited by
BMS 284756 at
0066-4804/01/$04.00+0 DOI: 10.1128/AAC.45.5.1463-1466.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Activities of BMS 284756 (T-3811) against Haemophilus
influenzae, Moraxella catarrhalis, and
Streptococcus pneumoniae Isolates from SENTRY
Antimicrobial Surveillance Program Medical Centers in Latin
America (1999)

2 µg/ml. The overall prevalence of
-lactamase
production was 15.2% in H. influenzae and 98.9% in
M. catarrhalis. BMS 284756 showed excellent potency and
spectrum against this group of pathogens, inhibiting all isolates at
0.12 µg/ml. BMS 284756 exhibited activity similar to those
displayed by the new fluoroquinolones, such as levofloxacin,
trovafloxacin, or gatifloxacin, and could be a therapeutic option for
empirical treatment of community-acquired respiratory tract infections.
*
Corresponding author. Mailing address: The JONES Group,
345 Beaver Kreek Centre, Suite A, North Liberty, Iowa 52317. Phone: (319) 665-3370. Fax: (319) 665-3371. E-mail:
ronald-jones{at}jonesgr.com.
Participants include the following: Laboratorio Santa Luzia (C. Zoccoli), Florianopolis, Brazil; Centro de Estudios en Antimicrobianos (J. M. Casellas), Buenos Aires, Argentina; Microbiology
Laboratory C.E.M.I.C. (J. Smayevsky), Buenos Aires, Argentina;
Unidad de Microbiologia Oriente (V. Prado), Santiago, Chile;
Universidad Catolica (E. Palavecino), Santiago, Chile; Corp. Para
Investig. Biologicas (J. A. Robledo), Medellin,
Colombia; Instituto de Doenias Infecciousas-IDIPA (H. Sader), Sao
Paulo, Brazil; Centro Medico de Caracas (M. Guzman), San Bernardino
Caracas, Venezuela; Hospital Ageles Del Pedregal (J. M. Presno-Bernal), Mexico D.F, Mexico; and Hospital de Clinicas de
Porto Alegre (A. L. Barth), Porto Alegre-RG, Brazil.
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