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Plaque morphology of PrV gK mutants. Noncomplementing Vero and complementing B5′-64 and C53/54 cells were infected with PrV-1112, PrV-gKβ, and PrV-gKgB under plaque assay conditions. Cells were fixed 2 days p.i., stained with X-Gal, and photographed. Bar = 500 μm.
