TABLE 4.
Detection of S. suis serotype 2 or 1/2 by bacteriological analysis and PCRa
| Group | No. of samples in which S. suis was detected at:
|
|||||||
|---|---|---|---|---|---|---|---|---|
| 16 days p.i.
|
Necropsy day
|
|||||||
| Bacteriology (external swab) | PCR (external swab) | Bacteriology
|
PCR
|
|||||
| External swab | Biopsy | Whole | External swab | Biopsy | Whole | |||
| 1 (THB) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 (strain 332, type 2) | 4 | 6 | 4 | 6 | 4 | 5 | 6 | 6 |
| 4 | 5 | 6 | 4 | 6 | 6 | 6 | 6 | 6 |
| 5 (strain 347, type 2) | 4 | 5 | 2 | 5 | 5 | 6 | 6 | 6 |
| 6 | 5 | 6 | 3 | 4 | 6 | 6 | 6 | 6 |
| 7 (strain 353, type 1/2) | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 4 |
| 8 | 0 | 0 | 0 | 0 | 0 | 3 | 5 | 5 |
a
Tonsil samples (from external swab, biopsy, and whole tonsil) from live pigs (16 days p.i.) and pigs after euthanasia (16 to 30 days p.i.) were studied.