TABLE 1.

Estimated E. coli O157 counts for each sample site for the 16 animals from which the organism was enumerated by direct plating

AnimalEstimated counts
Tissue at 1 cmTissue at 15 cmFeces at 1 cmFeces at 15 cm
(CFU ml−1)(CFU ml−1)(CFU g−1)(CFU g−1)
709.4 × 1056.4 × 1041 × 1052.9 × 104
1433.8 × 1041.3 × 1025.6 × 1031.4 × 103
1445.2 × 1051.2 × 1051 × 1054.5 × 104
1461.0 × 1061.5 × 104NSa9.8 × 102
1951.1 × 1053.2 × 1027.8 × 1051.8 × 103
283.8 × 104NDbNDND
868.9 × 101ND3.1 × 103ND
1561.3 × 103NDNDND
1979.3 × 101NDNDND
2007.1 × 104ND2.1 × 104ND
186ND6.1 × 1036.0 × 1032.8 × 102
39NDNDND1 × 101
150NDNDND4.6 × 101
157NDNDND2.4 × 102
159NDND1.4 × 102ND
190NDND3.9 × 101ND
  • a NS, no sample at site.

  • b ND, E. coli O157 not detected by direct plating.