TABLE 2.
Disease indicators for piglets infected with bovine or human strains of E. coli O157:H7a
| Symptom | No. of piglets with symptom
|
|
|---|---|---|
| Bovine strains (n = 50) | Human strains (n = 50) | |
| Death or CNS disease | 17b | 38 |
| Brain infarcts | 17 | 32 |
| Diarrhea | 45 | 49 |
| A/E lesions | 34 | 38 |
| Mesocolonic edema | 41 | 47 |
a
Five piglets were infected with 10 strains of bovine origin and 10 strains of human origin. The potential postchallenge survival time, 8.0 days (termination of the study), was reduced to 6.9 and 5.4 days by bovine and human isolates, respectively (P < 0.03, ANOVA).
b
Significantly different (P < 0.05, ANOVA).