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Table 2 Key clinical signs and treatment during an experiment with BCoV infected calves

From: Bovine coronavirus in naturally and experimentally exposed calves; viral shedding and the potential for transmission

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

-

  1. 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