TKT and Burkitt lymphoma: To create a type 2 EBV virus that can stably infect epithelial cells (and be titered), we inserted a GFP/G418R gene cassette (PCR amplified from the Akata virus genome in the BX1 BL line [37]) by homologous recombination into the nonessential BXLF1 (TK) gene in the type 2 EBV genome within AG876 Burkitt lymphoma (BL) cells.