CA9 and Epstein-Barr virus infection: Given the elevated expression pattern of CA9 and to a lesser extent CA12 in response to EBV infection, we first checked cell viability of LCLs in the absence and presence of two CA9/CA12 specific inhibitors–SLC-0111/U-104 and compound S4 along with pan CA inhibitor acetazolamide (Figs 4 and S5 and S1 Table).