Table 3.

Scoring of recorded clinical signs

Clinical signs	Score
General behavior
Normal	(0)
Inactif	(1)
Low head	(2)
Very inactif	(3)
Laying down	(4)
Food uptake
Normal	(0)
Loss of appetite	(2)
Anorexia	(3)
Absence	(4)
Faeces
Normal	(0)
Soft to liquid	(1)
Liquid diarrhea	(3)
Hemorrhagic diarrhea	(4)
Nasal secretions
Normal	(0)
Liquid	(1)
Serous	(3)
Muco-purulent	(4)
Hyperthermia
Normal	(0)
40 < t°C < 40.5	(2)
40.5 < t°C < 41	(3)
t°C > 41	(4)
Cough
Normal	(0)
Moderate	(2)
Frequent and dry	(3)
Frequent and productive	(4)
Salivation
Normal	(0)
Moderate	(2)
Profuse	(3)
Respiration
Normal	(0)
Moderate	(2)
Marked	(3)
Marked with difficulty	(4)

Clinical signs recorded of all animals: general behaviour, food uptake, faeces, nasal secretions, hyperthermia, salivation, cough, and respiration