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Herd C
| Week after arrival | ||||
|---|---|---|---|---|
| 0 | 4 | 8 | 12 | |
| A. pleuropneumoniae, type 2 | 0/12 | 0/12 | 12/12 | 12/12 |
| A. pleuropneumoniae, type 3 | 0/10 | 0/12 | 0/12 | 0/12 |
| M. hyopneumoniae | 0/12 | 0/12 | 0/12 | 5/12 |
| P. multocida | 8/12 | 12/12 | 12/12 | 12/12 |
| S. suis | 0/12 | 0/12 | 0/12 | 2/12 |
Number of seropositive pigs in 12 pigs repeatedly analysed during the fattening period at a time when pleuritis was registered in 20.5 % of the pigs at slaughter. For details about serum antibody levels, see the corresponding Fig. 4
