Table 2 Clinical scores in calves on day seven after experimental infection with BRSV

Clinical sign

A1

A2

A3

B1

B2

B3

General state

1

1

1

0

1

0

Appetite

1

1

1

0

0

0

Abdominal dyspnea

2

2

2

2

2

2

Temperature

0

4

0

0

1

2

Respiratory rate

3

3

3

1

3

0

Lung sounds intensity

2

3

3

0

2

1

Added lung sounds

0

3

2

0

2

1

Nasal discharge

1

2

1

1

1

1

Coughing

2

2

2

0

2

0

Clinical score

25

38

28

9

25

13