Skip to main content

Table 1 Parameters and coefficients used to calculate clinical scores in BRSV infected calves

From: A bovine respiratory syncytial virus model with high clinical expression in calves with specific passive immunity

Clinical parameter Parameter coefficient State description Numerical value
General state 4 Normal 0
Moves slowly, head down 1
Lying down/staggers 2
Recumbent 3
Appetite 4 Normal 0
Reduced 1
Absent 2
Abdominal dyspnea 3 Normal 0
Slight (short, rapid) 1
Moderate (labored) 2
Severe (very labored, grunting) 3
Rectal temperature 2 <39.6°C 0
<40.0°C 1
<40.5°C 2
<41.0°C 3
≥41.0°C 4
Respiratory rate 2 <50/min 0
<55/min 1
<65/min 2
<75/min 3
≥75/min 4
Intensity of lung sounds 1 Normal 0
Slightly enhanced 1
Moderately enhanced 2
Severely enhanced 3
Added respiratory sounds (wheezing or crackles) 1 Normal 0
Slight 1
Moderate 2
Severe 3
Coughing 1 Absent 0
Only provoked 1
Spontaneous, infrequent 2
Persistent 3
Nasal discharge 1 Normal 0
Slight uni-/bilat. serous 1
Moderate bilat. serous to purulent 2
Copious bilat. purulent 3
  1. During clinical examination, each clinical parameter was assigned a numerical value according to the appropriate state description for that parameter. A clinical score sum was then calculated, by multiplying each numerical value with the parameter coefficient.