| Clinical aspects | n (effective) | %(percentage) |
| Fever | 65 | 75.8 |
| Respiratory distress | 37 | 43 |
| Decreased tonus | 18 | 20.9 |
| Primary reflex disorders | 18 | 20.9 |
| Cough | 17 | 19.8 |
| Seizures | 12 | 14 |
| Diarrheoa | 11 | 12.8 |
| Jaundice | 9 | 10.5 |
| Altered consciousness | 8 | 9.3 |
| Behavior disorders | 8 | 9.3 |
| Vomiting | 5 | 5.8 |