Fig. 1

Shows the increase in viral loads assessed by RT-qPCR. The mean Ct-values are given for each of the three groups challenged with SAV2-i1 (blue), SAV3-i4 (dark orange) or SAV3-i6 (green) at week 1–4 poc. The controls are the SAV negative healthy fish sampled at the initiation of the challenge trial (Ct values > 45). At week 1 poc all samples were SAV negative. At week 2 poc the plot show results from only those samples that were SAV positive. All fish sampled at week 3 and 4 poc were SAV positive