| Clinical signs | Frequency | Pourcentage |
| Fever |
|
|
| Yes | 18 | 54.5 |
| No | 15 | 45.5 |
| Asthenia Yes No |
1 32 |
3.0 97.0 |
| Vomitting |
|
|
| Yes | 2 | 6.1 |
| No | 31 | 93.9 |
| Anorexia Yes No |
5 28 |
15.2 84.8 |