Antimicrobial Susceptibility Trends among Staphylococcus aureus Isolates from U.S. Hospitals: Results from 7 Years of the Ceftaroline (AWARE) Surveillance Program, 2010 to 2016
Keyword(s):
ABSTRACT We evaluated trends in Staphylococcus aureus antimicrobial susceptibility in U.S. hospitals in the 2010–2016 period. A total of 21,056 clinical isolates from 42 medical centers were tested for susceptibility by broth microdilution methods. Methicillin-resistant S. aureus (MRSA) rates decreased from 50.0% (in 2010) to 42.2% (in 2016). Susceptibility to erythromycin, levofloxacin, and clindamycin increased slightly, whereas susceptibility to ceftaroline, trimethoprim-sulfamethoxazole, and tetracycline remained stable. Ceftaroline retained potent activity against methicillin-susceptible S. aureus (MSSA) and MRSA (97.2% susceptible) with no marked variations.
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