Figure 5From: Npro of classical swine fever virus contributes to pathogenicity in pigs by preventing type I interferon induction at local replication sitesIFN-α/β bioactivity in serum of pigs inoculated with the vGPE--derived viruses and with vEy-37. Groups of 3 pigs were inoculated with the indicated viruses and blood was collected at 0, 12, 24, 36, 48, 72, 96 and 120 hpi. Serum IFN-α/β bioactivity was measured in duplicate using SK6-MxLuc cells. The error bars represent the standard deviation.Back to article page