4.5 Article

Antimicrobial resistance trends among sinus isolates of Streptococcus pneumoniae in the United States (2001-2005)

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OTOLARYNGOLOGY-HEAD AND NECK SURGERY
卷 136, 期 3, 页码 385-389

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WILEY
DOI: 10.1016/j.otohns.2006.09.016

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OBJECTIVE: To test the susceptibility of Streptococcus pneumoniae sinus isolates collected across the United States against commonly used antimicrobial agents. STUDY DESIGN AND SETTING: S. pneumoniae sinus isolates (N = 847) collected as part of the Tracking Resistance in the US Today Surveillance Program from 2001 to 2005 were tested against 8 antimicrobial agents. RESULTS: in ascending order, the relative activities (% susceptible) were penicillin (51.8%), trimethoprim/sulfamethoxazole (TMP/SMX) (57.6%), erythromycin (59.5%), cefuroxime (62.0%), amoxicillin/clavulanate (85.5%), clindamycin (86.1%), levofloxacin (99.4%), and linezolid (100%; for 2004 and 2005 respiratory seasons, only). Resistance rates over the 5 years remained generally stable, although resistance to amoxicillin/clavulanate nearly doubled (from 6.5% to 12.9%). Forty percent of isolates were resistant to >= 2 agents tested. CONCLUSIONS AND SIGNIFICANCE: Susceptibility trends among sinus S. pneumoniae isolates appear to have stabilized over the past 5 years. Resistance rates remain elevated for penicillin and macrolides, whereas the high prevalence of multidrug resistance remains a concern. (c) 2007 American Academy of Otolaryngology-Head and Neck Surgery Foundation. All rights reserved.

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