These enriched pathways among the DE predicted target genes of the DE miRNA show that miRNAs are important in the transcriptional response to BRSV infection and that the response is broadly similar to that of the host response to human respiratory syncytial virus (HRSV) which is primarily associated with the activation of interferon gamma associated signalling pathways (Vieira et al., 2019) and recruitment of cytotoxic T cells which are capable of destroying virus infected cells and resolving the infection (Griffiths et al., 2017). This evidence concerns the gene IFNG and infection.