[Activity of ertapenem and 19 other antimicrobial agents against beta-lactam-resistant Streptococcus pneumoniae and Haemophilus influenzae respiratory tract isolates].

Introduction: Ertapenem is a new carbapenem with a long half-life that has a broad spectrum of action against Gram-positive and Gram-negative bacteria. Although, clinically indicated for the treatment of the polymicrobial abdominal infection, other uses are possible, due to the broad spectrum of action of this antimicrobial agent.

Objective: The purpose of this study was to examine the susceptibility to ertapenem of Streptococcus pneumoniae and Haemophilus influenzae strains with resistance to beta-lactam antibiotics.

[Activity of telithromycin and other oral antibiotics against respiratory tract pathogens with acquired mechanisms of resistance].

Introduction: Antimicrobial resistance among strains of Streptococcus pneumoniae, Haemophilus influenza, and Streptococcus pyogenes has limited the usefulness of conventional agents for the treatment of some infectious diseases related with these microorganisms. There is thus a clear need for new antimicrobial agents active against these resistant strains.

Objectives: To assess the in vitro susceptibility to telithromycin and other oral antimicrobial agents of 307 strains of S.

[Clinical significance of Streptococcus agalactiae isolation from urine samples of outpatients from health care centers].

Introduction: Streptococcus agalactiae is a well-recognized pathogen in the obstetric population and is a cause of invasive infection in adults with underlying diseases. Nevertheless, the role of S. agalactiae in urinary tract infections in the adult non-pregnant population treated in outpatient health care centers has been less extensively studied.