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Scoring system of lung pathological changes.
| Assessable symptom | Maximum number of scores for one symptom |
|---|---|
| Perivascular infiltrates | 3 |
| Peribronchial infiltrates | 3 |
| Interstitial infiltrates | 5 |
| Intra-alveolar infiltrates | 5 |
| Neutrophil infiltration | 3 |
| Alveolar edema | 5 |
| Hemorrhages | 5 |
| Maximum score | 29 |
