Table 4

MIC distribution (squashtogram) of Salmonella isolates from all swine samplesa

Table 4
  • a n = 1,090. Areas with white backgrounds indicate the range of dilutions tested for each antimicrobial. Shaded areas fall outside the range of tested concentrations. The vertical bars indicate the CLSI or NARMS consensus breakpoints for resistance (R versus I and S combined). Numbers in the shaded areas on the right indicate the percentages of isolates with undetermined MICs known to be greater than the highest concentrations measured on the broth microdilution plates.

  • b AMI, amikacin; AMP, ampicillin; AUG, amoxicillin-clavulanic acid; AXO, ceftriaxone; CHL, chloramphenicol; CIP, ciprofloxacin; FIS, sulfisoxazole; FOX, cefoxitin; GEN, gentamicin; KAN, kanamycin; NAL, nalidixic acid; STR, streptomycin; SXT, trimethoprim-sulfamethoxazole; TET, tetracycline; TIO, ceftiofur.

  • c The MIC represents the first antibiotic (of two).