Fig 4. Infectious potential of PRV in cohabitated Atlantic and Sockeye salmon.

A time line outlines three successive cohabitation experiments (Gray bars) as well as the introduction and removal of treatment groups. The relative PRV L1 transcriptional load (±SE) is also provided at three intervals (black bars) either 4 or 6 weeks from the start of each of the three successive challenges. Significant (* p<0.05; ** p<0.01; *** p<0.001) differences in viral load are indicated at each time point.