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Persistent virus antigen expression in HepG2 cells. Cultures of HepG2 cell lines in eight-chamber LabTek chambers were infected with V51B (A), V10B (B), V30B (C), or MHV-A59 (D) at an MOI of 5 for 1 h. The cultures were stained with polyclonal MHV-A59 antiserum at 18 h postinfection.
