Volume 14, Number 3—March 2008
Dispatch
Ciprofloxacin-Resistant Salmonella enterica Serotype Typhimurium, China
Table
Resistance phenotypes of Salmonella enterica serotype Typhimurium isolated from Tongji Hospital outpatients, Wuhan, China, May 2002–October 2005
Antimicrobial agent | MIC, μg/mL* | No. resistant isolates (n = 44) |
---|---|---|
Phenicols (chloramphenicol) | >32 | 33 |
Penicillins | ||
Ampicillin | >32 | 35 |
Amoxicillin–clavulanic acid | >32/16 | 32 |
Cephalosporins | ||
Cefepime | >32 | 0 |
Cefotaxime | >64 | 0 |
Ceftriaxone | >64 | 0 |
Tetracyclines (tetracycline) | >16 | 36 |
Aminoglycosides | ||
Amikacin | >64 | 2 |
Gentamicin | >16 | 35 |
Kanamycin | >64 | 15 |
Streptomycin† | NA | 40 |
Sulfonamides and potentiated sulfonamides | ||
Sulfamethoxazole | >512 | 39 |
Trimethoprim-sulfamethoxazole | >4/76 | 36 |
Quinolones and fluoroquinolones | ||
Nalidixic acid | >32 | 36 |
Ciprofloxacin | >4 | 31 |
*MICs were determined by the broth-microdilution method; results were interpreted in accordance with the interpretive standards of the Clinical and Laboratory Standards Institute (4).
†Resistance to streptomycin was determined by disk-diffusion method. NA, not applied.
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