• Diagn. Microbiol. Infect. Dis. · Aug 2003

    Comparative Study

    Comparison of Streptococcus pneumoniae and Haemophilus influenzae susceptibilities from community-acquired respiratory tract infections and hospitalized patients with pneumonia: five-year results for the SENTRY Antimicrobial Surveillance Program.

    • Kelley A Gordon, Douglas J Biedenbach, and Ronald N Jones.
    • The JONES Group/JMI Laboratories, North Liberty, IA, USA. kelley-gordon@jmilabs.com
    • Diagn. Microbiol. Infect. Dis. 2003 Aug 1; 46 (4): 285-9.

    AbstractThe SENTRY Antimicrobial Surveillance Program has been monitoring the activity of commonly prescribed and novel antimicrobial agents on a global scale from 1997 to the present. Specific objectives have documented the key resistance rates among pathogens from both patients hospitalized with pneumonia and those diagnosed with community-acquired pneumonia. Hemophilus influenzae and Streptococcus pneumoniae are common pathogens in both of these patient populations and the susceptibility profiles for these two species were compared to distinguish potential differences that may be evident in North American surveillance (1997-2001). A total of 6,515 isolates of S. pneumoniae and 6,726 H. influenzae strains were tested using reference broth microdilution methods at a monitoring center. Ampicillin resistance was approximately 25% among H. influenzae isolates and did not significantly differ between strains from community-acquired infections or hospitalized patients. beta-lactamase-negative ampicillin resistant strains and fluoroquinolone refractory strains were rare (0.3 and

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