Figure 3

P. salmonis load measured by qPCR in DNA samples from the head kidney (A), spleen (B), and liver (C) of post-smolt Atlantic salmon i.p. challenged with P. salmonis LF-89-like isolate (Psal-013), EM-90-like isolate (Psal-182) or after co-infection with both isolates (CO). The black square indicates the single-copy gene glyA from P. salmonis. The grey circle indicates the unique EM-90 gene, which was amplified with custom-designed primers (EM182). Values for LF-89-specific primers are not shown due to detection below the threshold for all samples. Ct values are presented as the means. Days post-challenge: dpc. *Significant difference (p value < 0.05).