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Table 9 Virulence factors genes in hemolytic Escherichia coli isolates from pigs (n = 164) with and without post-weaning diarrhea

From: An observational field study of porcine post-weaning diarrhea: clinical and microbiological findings, and fecal pH-measurements as a potential diagnostic tool

Virulence factor genes

Diarrhea

Not diarrhea

F18

18

14

F18 + Lt + StB

10

10

F18 + STa

7

4

No fimbria, no toxin

4

8

F18 + ?

4

3

F4 + Lt + STb

4

1

F18 + Lt

4

1

F18 + STa + STb

3

4

F18 + STb

2

0

F18 + Vt1 + Vt2

1

2

F4 + STa + STb

1

0

F4

1

0

STb

0

1

  1. The data was collected in outbreaks of post-weaning diarrhea in nine Danish commercial indoor herds weaning without medicinal zinc. Rows are sorted according to prevalence among diarrheic pigs, and subsequently, prevalence among non-diarrheic pigs
  2. F4: Fimbria type 4
  3. F18: Fimbria type 18
  4. STa: Heat-stabile toxin type A
  5. STb: Heat-stabile toxin type B
  6. Lt: Heat-labile toxin
  7. Vt1: Verotoxin type 1
  8. Vt2: Verotoxin type 2
  9. ?: Missing values for the toxin genotypes
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Porcine Health Management

ISSN: 2055-5660

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