Fig. 1.

Analysis of virus growth upon type I IFN-treatment. CHSE-Mx10 cells untreated, or treated with recombinant salmon IFN-α1 24 h prior to infection, 4 h p.i. or 10 h p.i., were infected with IPNV (N1) (MOI 2) in four parallel wells. Supernatants were harvested at indicated times and virus titers were determined as described in Section 2. These data represent one of two repeated experiments which gave reproducible results.