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Electron microscopy. Nontransfected RK13 cells were infected with either wild-type PrV (A and B) or PrV-gE/I/M− (C and D) and analyzed 16 h after infection. (E and F) RK13-gE/I (E) and RK13-gM (F) cells after infection with the triple mutant. Bars represent 750 nm in panel A, 500 nm in panel B and D, 2 μm in panel C, and 1 μm in panels E and F.
