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Table 3 Association between diarrhea and virulence genes (single or in combination) in fecal samples from pre-weaned calves

From: Characterization of virulence genes in Escherichia coli strains isolated from pre-weaned calves in the Republic of Korea

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