“…Indeed, KSHV and HCMV are often detected simultaneously in the same patient, more importantly both viruses can be isolated from blood cells (3, 9, 12, 15, 16, 22, 29). HCMV IE1 can inhibit histone deacetylase (HDAC) activity (21, 27), which mimics the function of trichostatin A (TSA) or sodium butyrate (NaB); it is reasonable to speculate that HCMV can cause the lytic switch of KSHV infection if HCMV infected the cells that harbor the KSHV genome.…”