Skip to main content

Table 2 Reisolation of the infection strain from pigs primed with a bacterin and then infected with the indicated strains

From: The immunoglobulin M-degrading enzyme of Streptococcus suis, Ide Ssuis , is involved in complement evasion

Infection strain a

Number of pigs with an isolate of the infection strain in at least one inner organ b

Number of pigs with indicated site of infection strain a isolation/total number of pigs

Tonsils

Lung c

Serosa d

Spleen

Liver

Brain, CSF e

Joint fluid f

Endocard

wt

6/9

5/9

5/9

5/9

5/9

6/9

1/9

3/9

3/9

Δ

3/8

2/8

1/8

0/8

3/8

2/8

3/8

1/8

1/8

Δ_h

7/8

3/8

6/8

5/8

6/8

5/8

3/8

5/8

6/8

  1. aInfection strains were strain 10 (wt), 10Δide Ssuis (Δ) and 10Δide Ssuis _homologue (Δ_h). Identification was conducted through PCR as described in Materials and methods.
  2. bPiglets with isolates of the challenge strain exclusively from the tonsil were not considered.
  3. cOne cranial lobe was investigated.
  4. dPleural, peritoneal or pericardial cavity.
  5. eCerebrospinal fluid.
  6. fPunctures of both tarsal and carpal joints were investigated in each animal. In cases of lameness additional joint punctures of the respective limb were screened.