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Comparisons of HeLa cells before and after a 7-h infection with vaccinia. (a) Antivinculin immunofluorescence staining of uninfected (upper right panel) and infected (lower right panel) cells. (b) Antitubulin immunofluorescence staining of uninfected (upper right panel) and infected (lower right panel) cells. Corresponding phase-contrast images are shown in the left-hand panels.
