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Volume 14, Number 3—March 2008


Ciprofloxacin-Resistant Salmonella enterica Serotype Typhimurium, China

Shenghui Cui*, Jingyun Li*, Ziyong Sun†, Changqin Hu*, Shaohong Jin*, Yunchang Guo‡, Lu Ran‡, and Yue Ma*Comments to Author 
Author affiliations: *State Food and Drug Administration, Beijing, People’s Republic of China; †Huazhong University of Science and Technology, Wuhan, People’s Republic of China; ‡Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China;

Main Article


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
Ampicillin >32 35
Amoxicillin–clavulanic acid >32/16 32
Cefepime >32 0
Cefotaxime >64 0
Ceftriaxone >64 0
Tetracyclines (tetracycline) >16 36
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.

Main Article