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Table 3 Animals (n) with different serogroups (A to I) of Dichelobacter nodosus identified by PCR analyses in the sheep flocks and the corresponding co-grazing cattle herds

From: Possible cross-infection of Dichelobacter nodosus between co-grazing sheep and cattle

Farm

Species

Frequency of serogroup-PCR- positive samples

Animals (n)

Group I

  

A

B

C

D

E

F

G

H

I

1a

C

3/10

3 1

0

0

0

0

0

0

0

0

 

S

4/4

4

0

0

0

0

0

0

0

0

2a

C

14/18

2

12

10

0

8

0

0

0

0

 

S

5/5

5

0

0

0

0

0

0

2

0

3a

C

6/10

0

0

0

0

0

10

0

6

0

 

S

7/7

5

1

2

0

0

0

0

3

2

4a

C

3/10

3

0

0

0

0

0

0

0

0

 

S

10/10

10

0

0

2

2

2

0

7

0

5a

C

10/10

10

0

0

0

0

0

0

0

0

 

S2

17/17

15

1

2

2

2

2

0

10

2

Group II

           

6b

C

8/10

6

2

3

0

0

0

0

0

4

 

S

1/10

0

0

0

0

0

0

0

0

1

7b

C

10/10

0

10

7

1

1

1

0

5

8

 

S

2/10

0

2

0

0

0

0

0

0

1

8b

C

10/10

0

1

1

1

9

1

0

5

2

 

S

1/10

0

0

0

1

1

1

0

1

0

9b

C

10/10

6

8

7

0

0

0

0

0

2

 

S

1/10

1

0

0

0

0

0

0

0

0

10c

C

10/10

1

8

2

1

8

1

0

9

1

 

S

0/10

0

0

0

0

0

0

0

0

0

11c

C

10/10

0

3

2

6

2

4

0

6

3

 

S

3/10

0

2

1

0

0

0

0

0

1

12c

C

10/10

6

0

3

0

1

0

7

9

3

 

S

0/10

0

0

0

0

0

0

0

0

0

13c

C

10/10

0

4

6

3

0

0

2

9

4

 

S

2/10

0

0

1

0

0

0

0

1

0

  1. C = cattle
  2. S = sheep
  3. a Severe footrot previously recorded in sheep flock
  4. b Mild footrot previously recorded in sheep flock
  5. c No footrot previously recorded in sheep flock
  6. 1 Positive sheep samples and the corresponding
  7. positive cattle samples in the co-grazing farms are written in bold
  8. 2 20 sheep bought from herd 3 and 4. SFR diagnosed after delivery of sheep