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Table 3 Antimicrobial resistance patterns of S. enterica Infantis by isolation methods

From: National surveillance of Salmonella enterica in food-producing animals in Japan

No. of antimicrobials Antimicrobial resistance patterns a Broilers Total (%)
   FEb DSECc   
0 Susceptible 2 (5.3) 0 (0) 2 (2.9)
1 DSM 2 (5.3) 0 (0) 2 (2.9)
  OTC 2 (5.3) 0 (0) 2 (2.9)
2 DSM, OTC 9 (23.7) 8 (25.8) 17 (24.6)
3 DSM, KM, OTC 7 (18.4) 2 (6.5) 9 (13.0)
  DSM, OTC, TMP 4 (10.5) 2 (6.5) 6 (8.7)
  KM, OTC, TMP 1 (2.6) 0 (0) 1 (1.4)
4 DSM, KM, OTC, TMP 11 (28.9) 19 (61.3) 30 (43.5)
Total   38 (100) 31 (100) 69 (100)
  1. a DSM: dihydrostreptomycin, KM: kanamycin, OTC: oxytetracycline, TMP: trimethoprime
  2. b FE: First enrichment culture
  3. c DSEC: Delayed secondary enrichment culture