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Table 1 Scores assigned to clinical signs observed in pigs following inoculation of HP-PRRSV

From: Pathological and immunological characteristics of piglets infected experimentally with a HP-PRRSV TJ strain

Category of clinical sign Symptom Score
Systemic: Normal 0
Apathy 1
Anorexia 2
Severe depression 5
Death 10
Respiratory: Normal 0
Sneezing, Coughing 1
Tachypnea 2
Laboured breathing 3
Abdominal breathing 5
Other symptoms: Normal 0
Diarrhea, 1
Conjunctivitis 2
Reddening of the ears 3
 Skin cyanopathy 5