Table 2.

Percentage of fecal pats positive forE. coli O157:H7a

Feedlot% Positive (n samples)
HomeHospitalBullerTotal
All isolates
 V0.43 (3,237)0.00 (541)1.90 (159)0.43 (3,937)
 R0.21 (3,363)0.49 (1,013)0.32 (316)0.28 (4,692)
 S0.20 (2,958)0.49 (610)0.27 (365)0.25 (3,933)
 M0.09 (3,160)0.10 (980)0.00 (348)0.09 (4,488)
 Total0.24 (12,718)0.29 (3,144)0.42 (1,188)0.26 (17,050)
PCR confirmed
 V0.12 0.00 1.26 0.15 
 R0.12 0.30 0.32 0.17 
 S0.17 0.00 0.27 0.15 
 M0.03 0.00 0.00 0.02 
 Total0.11 0.10 0.25 0.12 
  • a Results represent percentage of fecal pats positive for each type of pen (home, hospital, and buller), the pen type total percent, and the total percent for each feedlot for all isolates and for PCR-confirmed isolates. Multiple picks from a single sample were counted once. Sample sizes for PCR-confirmed isolates were identical to sample sizes for all isolates.