The genes that were found to be differentially regulated between donors were the gene G0/G1 switch 2 (G0S2) in H5N1-infected cells at 1 h post-infection and five genes (dual specificity phosphatase 1 (DUSP1), v-fos FBJ murine osteosarcoma viral oncogene homolog (FOS), glucosaminyl (N-acetyl) transferase 4 (GCNT4), microtubule associated serine/threonine kinase-like (MASTL), and TRAF family member-associated NF-κB activator (TANK)) in H5N1-infected cells at 6 h post-infection. Here, FOS is linked to infection.