There were 357 DEPs by infection level (i.e., H-BKD vs. L-BKD), which were associated with several BPs including the regulation of Janus kinase (JAK)-Signal transducer and activator of transcription (STAT) signalling, activated downstream of the interferon (IFN) pathway (Figure 4; Supplementary Table S3B). Here, IFNA1 is linked to infection.