Fig. 6
Immunoprotective effects against HIRRV elicited by oral vaccine. a Virus loads in spleens of vaccinated flounders post-challenge with HIRRV. Mean viral loads and standard deviation were represented in log10 scale. b The survival rates of flounder in each group, n = 30. Statistical significance was calculated after comparing PBS group by the Log-rank (Mantel-Cox) method. * indicates p < 0.05, ** indicates p < 0.01