Table 2.

Presence of virulence factors in 719 prime lamb fecal samples from 29 flocksa

Virulence factor(s)No. of samples with factorMean (SD) no. of samples per flock
None2317.966 (5.834)
eaeA 100.345 (0.614)
eaeA,stx 2 10.034 (0.186)
eaeA,stx 1 371.276 (1.461)
eaeA, ehxA 110.379 (0.679)
eaeA, stx 2,stx 1 00 (0)
eaeA,stx 2, stx 1 ehxA 80.276 (0.702)
stx 2 10.034 (0.186)
stx 2,stx 1 70.241 (0.831)
stx 2, ehxA 20.069 (0.258)
stx 2, stx 1,ehxA 80.276 (0.841)
stx 1 1976.793 (4.109)
stx 1,ehxA 1153.966 (3.018)
ehxA 411.414 (2.693)
eaeA,stx 1 491.690 (2.407)
eaeA, stx 2,ehxA 10 (0)
Total71924.79 (1.114)
  • a Feces were collected from 25 animals per flock, except one flock from which 19 samples were collected.