Table 1.

Antibiotic resistance profiles of S. typhimurium isolates used in this worka

Phage typeACSSuTASSuTLong PCR resultb
Non-DT104
 Wash. State isolates
  S3447 (type 208, human)x
  S3444 (type 771, bovine)x
  S3426 (type 771, bovine)x
DT104 related
 CDC isolates
  G8430 (U302, human)x+
  G7601 (U302, human)x+
DT104
 Wash. State bovine isolates
  S3455x+
  S2380x+
  S3461x
  S3307x+
  S2486x+
  S2490x+
 CDC human isolates
  H3402x
  H3380x+
  H2662x+
  H3278x+
 NADCc isolates
  13HP (swine)x+
  FDIU 2576 (human)x+
  DHEP 12362 (bovine)x+
Untyped
  FSIS-026 (FSIS, unknown)x+
  H3379 (untypeable, human)x
  • a x, possession of resistance profile.

  • b See Fig. 3 and Results and Discussion; +, presence of 10,036-bp band.

  • c NADC, National Animal Disease Center.