Fig. 3From: Efficacy of genogroup 1 based porcine epidemic diarrhea live vaccine against genogroup 2 field strain in JapanClinical symptom score and survival rate in the challenged piglets. a Mean clinical symptom score of suckling piglets. Clinical symptom score: 0 = Normal stool, 1 = Loose stool, 2 = Diarrhea, 3 = Watery diarrhea, and 4 = Death. b Survival rate of the challenged piglets. * means significantly different results as p < 0.05Back to article page