S. aureus infection alters the expression of several genes and miRNAs in the mice mammary tissue. Biological network analysis showing the differential expression of various genes involved in immune response and their regulatory miRNAs in the SA2 infected mice mammary tissue. Genes that are overexpressed compared to PBS are shown in red, and repressed genes are marked in green. Genes known to play a critical role in inflammatory and immune response are shown in a bigger size. The lines connecting overexpressed nodes are shown in red and downregulated nodes are shown in green.