Phenotypic and Genotypic Characterization of Animal-Source Salmonella Heidelberg Isolates

Figure 2

Percentage of resistance to the listed antimicrobials in Salmonella Heidelberg isolates from samples recovered (a) from environmental and clinical samples, (b) prior to 2006, 2006–2011, and 2012-2013, and (c) from equine, chicken, turkey, and bovine specimens. AMC = clavulanic acid/ampicillin, AMP = ampicillin, AZI = azithromycin, FOX = cefoxitin, TIO = ceftiofur, AXO = ceftriaxone, CHL = chloramphenicol, CIP = ciprofloxacin, GEN = gentamicin, KAN = kanamycin, NAL = nalidixic acid, STR = streptomycin, SUL = sulfisoxazole, TET = tetracycline, and SXT = trimethoprim/sulfamethoxazole; = significantly different () percent of resistant isolates between (a) source, (b) time frame of recovery, and (c) species of origin.

(a)

(b)

(c)