Compared to the 1% FAω3 diet, fish receiving 1% FAω6 diet and challenged with co-infection indicated significantly down-regulated gene expression in apoptosis and innate immune markers (e.g., c3, c7 and clec4e), and up-regulated gene expression for heat shock proteins (e.g., hspb1, hspb7, and hspb30), and striated muscle development (e.g., tnni2, myh2; Supplementary File 4, sub-table T4). The gene discussed is C3; the disease is coinfection.