Host-genes, such as Nfkbia, Ifit1, Cxcl10, Ccl7 and Ccl5, which contain binding sites for MCMV-activated transcription factors in their promoters [27,31,33], were also activated upon MCMV infection and their expression was suppressed or delayed by TAT-I24 only during the very early phase of infection (0.5–2 h post-infection). The gene discussed is IFIT1; the disease is infection.