Noteworthy, the percentages of CD19+Ki67+ cells with EBV GFPΔE3C and EBNA3CΔ621–675 infection were found to be substantially lower than those with EBV GFP-WT and EBNA3CΔ183–240 infected CD19 positive B-cells after 24 hours. The gene discussed is MKI67; the disease is infection.