Table 3 Detection of A. pleuropneumoniae in pleural and pericardial fluids and corresponding severity of disease during acute infection
Degree of clinical disease | Degree of lung lesions | |||||||
|---|---|---|---|---|---|---|---|---|
Non-diseased | Mild | Moderate | Severe | No lesions | Mild | Moderate | Severe | |
Number of animals (n = 15) | 1 | 8 | 1 | 5 | 0 | 3 | 5 | 7 |
Pleural fluid | ||||||||
Min. volume (mL) | 1 | 1 | 30 | 15 | – | 1 | 1 | 15 |
Max. volume (mL) | 1 | 35 | 30 | 230 | – | 13 | 35 | 230 |
Mean volume ± SD (mL) | – | 11.3 ± 11.4 | – | 87.0 ± 87.7 | – | 7.0 ± 6.4 | 13.8 ± 13.7 | 69.3 ± 77.8 |
Min. cell count (cfu/mL) | 0 | 0 | 4.2 × 107 | 9.7 × 107 | – | 0 | 0 | 4.2 × 107 |
Max. cell count (cfu/mL) | 0 | 2.7 × 108 | 4.2 × 107 | 1.3 × 109 | – | 1.5 × 107 | 2.7 × 108 | 1.3 × 109 |
Mean cell count ± SD (cfu/mL) | – | 5.9 × 107 ± 9.7 × 107 | – | 4.1 × 108 ± 5.0 × 108 | – | 7.5 × 106 ± 8.6 × 106 | 6.4 × 107 ± 1.2 × 108 | 3.2 × 108 ± 4.4 × 108 |
Pericardial fluid | ||||||||
Min. volume (mL) | 5 | 1 | 4 | 4 | – | 3 | 1 | 4 |
Max. volume (mL) | 5 | 65 | 4 | 70 | – | 18 | 65 | 70 |
Mean volume ± SD (mL) | – | 13.5 ± 21.6 | – | 29.0 ± 27.5 | – | 10.5 ± 8.1 | 15.6 ± 27.8 | 22.6 ± 25.0 |
Min. cell count (cfu/mL) | 0 | 0 | 1.2 × 106 | 8.7 × 104 | – | 0 | 0 | 8.7 × 104 |
Max. cell count (cfu/mL) | 0 | 4.0 × 105 | 1.2 × 106 | 2.0 × 108 | – | 17 | 1.5 × 102 | 2.0 × 108 |
Mean cell count ± SD (cfu/mL) | – | 5.0 × 104 ± 1.4 × 105 | – | 4.0 × 107 ± 8.9 × 107 | – | 8.5 ± 9.8 | 32.4 ± 65.9 | 2.9 × 107 ± 7.5 × 107 |