Table 2.
Key clinical signs and treatment during an experiment with BCoV infected calves
| Animal group | Calf no. | Peak rta (°C) | Number of days with | Peak clinical score | Days with clinical score >6 | Day of treatment initiationd | |||
|---|---|---|---|---|---|---|---|---|---|
| depression | diarrheab | nasal dischargec | respiratory rate ≥65 | ||||||
| Field | F1 | 40,3 | 0 | 3 | 1 | 0 | 5 | 0 | −1 |
| F2 | 39,8 | 3 | 2 | 1 | 0 | 8 | 2 | 3 | |
| F3 | 40,1 | 2 | 0 | 7 | 0 | 7 | 1 | −5e | |
| F4 | 40,6 | 1 | 0 | 4 | 1 | 7 | 2 | 2 | |
| F5 | 39,7 | 2 | 13 | 1 | 2 | 6 | 0 | - | |
| F6 | 39,2 | 1 | 0 | 4 | 0 | 5 | 0 | - | |
| Exposed | E1 | 39,5 | 7 | 0 | 2 | 3 | 7 | 1 | - |
| E2 | 39,8 | 4 | 1 | 7 | 1 | 8 | 3 | 7 | |
| E3 | 40,2 | 8 | 1 | 19 | 2 | 9 | 5 | 5 and 18 | |
| E4 | 39,9 | 6 | 1 | 8 | 0 | 8 | 4 | - | |
| Sentinel | S1 | 39,2 | 1 | 4 | 3 | 0 | 5 | 0 | - |
| S2 | 39,4 | 2 | 0 | 3 | 0 | 4 | 0 | - | |
The calves were exposed to BCoV in the field (F1-6), were exposed to F-animals (E1-4) or exposed to E-animals (S1-2). aPeak rectal temperature (rt) bRunny to watery stools were considered diarrheic. c Mucopurulent or purulent nasal discharge (nasal discharge score =2). d Five days of i.m. treatment with 30 000 IU procaine benzylpenicillin was initiated on indicated day. e Calf F3 was treated for six days