Virulence genes | No. (%) of E. coli strains by the presence of diarrhea | P value | |
---|---|---|---|
Diarrheic calves (n= 329) | Healthy calves (n= 360) | ||
F17 | 124 (37.7) | 156 (43.3) | 0.246 |
F5 | 2 (0.6) | 1 (0.3) | 0.600 |
F41 | 0 (0.0) | 0 (0.0) | – |
sta | 1 (0.3) | 1 (0.3) | 0.935 |
stx1 | 17 (5.2) | 19 (5.3) | 0.682 |
stx2 | 0 (0) | 1 (0.3) | 0.997 |
eae | 8 (2.4) | 9 (2.5) | 0.951 |
saa | 5 (1.5) | 2 (0.6) | 0.322 |
F17 + F5 | 2 (0.6) | 1 (0.3) | 0.607 |
F17 + stx1 | 5 (1.5) | 7 (1.9) | 0.529 |
F17 + F41 | 2 (0.6) | 1 (0.3) | 0.449 |
F17 + eae | 2 (0.6) | 1 (0.3) | 0.463 |
stx1 + eae | 6 (1.8) | 8 (2.2) | 0.600 |
stx1 + saa | 1 (0.3) | 1 (0.3) | 0.825 |
stx1 + F5 | 0 (0.0) | 1 (0.3) | 0.995 |
stx2 + sta | 1 (0.1) | 0 (0) | 0.996 |
F17 + stx1 + eae | 1 (0.3) | 1 (0.3) | 0.819 |
F5 + stx1 + saa | 1 (0.3) | 0 (0) | 0.997 |
Total | 178 (54.1) | 210 (58.3) | 0.420 |