Table 5.
Percentages and number of animals presenting each lesion grouped by etiologies. Higher number and percentages are underlined.
| Brain-associated lesions | CeMV (n = 16) | HV (n = 13) | Brucella sp. (n = 7) | T. gondii (n = 6) | Nasitrema sp. (n = 1) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Animals (n) | Percentage (%) | Animals (n) | Percentage (%) | Animals (n) | Percentage (%) | Animals (n) | Percentage (%) | Animals (n) | Percentage (%) | |
| Meningitis | 16 | 100 | 10 | 76.9 | 7 | 100 | 5 | 83.3 | 1 | 100 |
| Minimal | 7 | 43.7 | 4 | 30.8 | 0 | 0 | 5 | 83.3 | 1 | 100 |
| Mild | 7 | 43.7 | 5 | 38.5 | 0 | 0 | 0 | 0 | 0 | 0 |
| Moderate | 1 | 6.25 | 0 | 0 | 2 | 28.6 | 0 | 0 | 0 | 0 |
| Severe | 1 | 6,25 | 1 | 7.7 | 5 | 71.4 | 0 | 0 | 0 | 0 |
| Perivascular cuffings | 16 | 100 | 11 | 84.6 | 6 | 85.7 | 6 | 100 | 1 | 100 |
| Minimal | 4 | 25 | 4 | 30.8 | 0 | 0 | 6 | 100 | 1 | 100 |
| Mild | 6 | 37.5 | 4 | 30.8 | 0 | 0 | 0 | 0 | 0 | 0 |
| Moderate | 6 | 37.5 | 1 | 7.7 | 4 | 57.1 | 0 | 0 | 0 | 0 |
| Severe | 0 | 0 | 2 | 15.4 | 2 | 28.6 | 0 | 0 | 0 | 0 |
| Microgliosis | 11 | 68.7 | 10 | 76.9 | 4 | 57.1 | 4 | 66.7 | 0 | 0 |
| Minimal | 9 | 56.22 | 6 | 46.1 | 3 | 42.9 | 4 | 66.7 | 0 | 0 |
| Mild | 2 | 12.5 | 4 | 30.8 | 1 | 14.3 | 0 | 0 | 0 | 0 |
| Moderate | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Severe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| INCIBs | 2 | 12.5 | 6 | 46.1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Malacia | 4 | 25 | 5 | 38.5 | 2 | 28.6 | 3 | 50 | 1 | 100 |
| Minimal | 3 | 18.7 | 2 | 12.5 | 2 | 28.6 | 2 | 33.3 | 0 | 0 |
| Mild | 1 | 6.2 | 3 | 23.1 | 0 | 0 | 1 | 16.7 | 0 | 0 |
| Moderate | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 100 |
| Severe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Neuronal necrosis and neuronophagia | 10 | 62.5 | 9 | 69.2 | 3 | 42.9 | 4 | 66.7 | 0 | 0 |
| Minimal | 7 | 43.7 | 7 | 53.8 | 0 | 0 | 3 | 50 | 0 | 0 |
| Mild | 2 | 12.5 | 2 | 15.4 | 1 | 14.3 | 1 | 16.7 | 0 | 0 |
| Moderate | 1 | 6.25 | 0 | 0 | 2 | 28.6 | 0 | 0 | 0 | 0 |
| Severe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Hemorrhages | 9 | 56.2 | 6 | 46.1 | 0 | 0 | 1 | 16.7 | 0 | 0 |
| Oedema | 4 | 25 | 2 | 15.4 | 0 | 0 | 2 | 33.3 | 0 | 0 |
| Associated brain lesions | 11 | 68.75 | 1 | 7.7 | 4 | 57.1 | 6 | 100 | 0 | 0 |
| Pyogranulomatous inflammation | 3 | 18.7 | 0 | 0 | 3 | 42.8 | 6 | 100 | 0 | 0 |
| Syncytia | 4 | 25 | 1 | 7.7 | 0 | 0 | 0 | 0 | 0 | 0 |
| Vasculitis | 3 | 18.7 | 0 | 0 | 2 | 28.6 | 0 | 0 | 0 | 0 |
| Fibrinoid necrosis of vessels | 0 | 0 | 0 | 0 | 2 | 28.6 | 0 | 0 | 0 | 0 |
| Tissue cysts | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 66.7 | 0 | 0 |
| Lesions in other regions | 13 | 81.25 | 7 | 53.8 | 7 | 100 | 2 | 33.3 | 0 | 0 |
| Ventriculitis | 1 | 6.2 | 0 | 0 | 1 | 14.3 | 0 | 0 | 0 | 0 |
| Cerebellitis | 3 | 16 | 0 | 0 | 3 | 42.9 | 2 | 33.3 | 0 | 0 |
| Myelitis | 4 | 25 | 2 | 15.4 | 4 | 57.1 | 0 | 0 | 1 | 100 |
| choroiditis | 4 | 25 | 5 | 38.5 | 3 | 42.9 | 1 | 16.7 | 0 | 0 |
| Polyradiculoneuritis | 1 | 6.2 | 0 | 0 | 5 | 71.4 | 0 | 0 | 0 | 0 |
CeMV, Cetacean Morbillivirus; HV, Herpesvirus; T. gondii, Toxoplasma gondii. Bold numbers indicate n and percentages of main CNS lesions observed in each group of etiological agents.