Table 1.
Details of clinical scores at euthanasia, lung virus titres and inflammatory changes in broncho-alveolar lavage fluid (BALF) following intratracheal inoculation of pigs with swine influenza virus. PI, post-inoculation.
| PI (h) | n | Mean clinical score ± SD | Mean virus titre ± SD (log10 TCID50/g) | Mean cell numbers in BALF (x106) ± SD |
||
|---|---|---|---|---|---|---|
| Total | Neutrophils | Mononuclear cells | ||||
| 0 | 2 | 0.0 ± 0.0 | <1.7 ± 0 | 131 ± 18 | 1 ± 0 | 130 ± 18 |
| 24 | 3 | 1.7 ± 1.5 | 9.6 ± 0.3 | 458 ± 310 | 332 ± 336 | 126 ± 50 |
| 30 | 2 | 3.5 ± 0.7 | 9.2 ± 0.2 | 614 ± 303 | 481 ± 211 | 133 ± 92 |
| 48 | 3 | 1.7 ± 1.2 | 8.7 ± 0.3 | 331 ± 131 | 114 ± 113 | 217 ± 122 |
| 72 | 3 | 0.0 ± 0.0 | 7.5 ± 0.7 | 118 ± 24 | 11 ± 3 | 107 ± 26 |
| 120 | 3 | 0.0 ± 0.0 | 5.8 ± 0.6 | 228 ± 18 | 15 ± 5 | 213 ± 20 |