Fig. 1

Antiviral activity of IFN-alpha in a sensitive cell test system in vitro: A MDBK cells. Negative control; B MDBK + VSV, cytopathic effect. Positive control (VSV control); C MDBK cells + Sprey + VSV (50% damage to the cell monolayer by VSV); D MDBK cells + Gel + VSV (50% damage to the cell monolayer by VSV)