Pro-inflammatory cytokine response 10 days after PRRS virus challenge from BALF.

10 days after PRRS virus challenge BALF were taken at necropsy. Concentrations of the cytokines IL-1β (a), TNFα (b) and IFNα (c) were determined by ELISA. Each symbol represents the average of 2 technical replicates of BALF samples from one individual animal. The bars represent the median concentration in pg/ml (IL-1β and TNFα) and ng/ml (IFNα) of 10 animals analyzed from each respective group. Significant differences were calculated by Mann-Whitney-test and calculated p-values were indicated in the graph.