Table 2.
Mean histopathology lung scores in experimentally infected groups.
| Group |
||||
|---|---|---|---|---|
| Lesion typea | PorPV/Mock | PorPV/swH1N1 | Mock/swH1N1 | Mock/Mock |
| Bronchiolar-associated lymphoid tissue hyperplasia (score/4)b | 1.67 ± 0.52 | 1.67 ± 1.21 | 2.17 ± 0.75 | 0.78 ± 1.07 |
| Development of perivascular lymphoplasmacytic infiltration near to respiratory bronchioles (score/4) | 1.50 ± 0.55 | 1.0 ± 1.10 | 1.17 ± 0.41 | 0.55 ± 0.96 |
| Interstitial pneumonia (score/4) | 1.33 ± 0.52 | 1.17 ± 1.17 | 1.17 ± 0.98 | 0.67 ± 1.15 |
| Increase of the number of alveolar macrophages (score/4) | 0.17 ± 0.41 | 0.50 ± 0.55 | 0.67 ± 0.52 | 0.67 ± 0.58 |
| Total mean | 1.17 ± 0.76 | 1.08 ± 1.06 | 1.29 ± 0.86 | 0.67 ± 0.94 |
| Total score/16 | 4.67 | 4.33 | 5.17 | 2.66 |
a
No significant differences between the observed groups (P > 0.05).
b
Microscopic lesion severity or condition was scored as follows: 0, null; 1, mild; 2, moderate; 3, marked; 4, very marked.