Next, in order to study the effect of pMGF505-2R on IFN-β production during ASFV infection, we analyzed IFN-β production during infection with recombinant Arm/07-ΔMGF505-2R virus compared to infection with the virulent Arm/07/CBM/c2 strain and the attenuated NH/P68 strain. The gene discussed is IFNB1; the disease is infection.