SAV1 and infection: A Norwegian experimental study found 57% of SAV2 cohabitant fish and 84% of SAV3 cohabitant fish to test positive by real-time RT-PCR at 2 weeks post-infection, which increased to 98% (regardless of SAV genotype) by week 3 and remained close to 100% until the end of the experiment (week 12) (16).