IL1B and infection: In the case of the NY-1 ncp-BVDV strain, to determine the effect of infection on IL-1β secretion, we used MOI 2:1 and 10:1 for 24 h, obtaining secretion levels of 252.9 pg/mL and 306.5 pg/mL, respectively (Figure 1B), with no difference between the MOIs.