(a) Vaccinia virus (strain ELSTREE) in MA-104 cells, 48 h after
infection, immuno-fluorescence staining, blue oval: immuno-stained Vaccinia virus
(green); (b) corresponding position to (a), phalloidin-TRITC staining of actin, yellow
oval: actin tails (orange); (c) corresponding position to (a) and (b), merged picture,
immuno-fluorescence (green to turquoise), phalloidin-TRITC staining of actin (orange),
white oval: actin tails (orange) and Vaccinia virus (green) at corresponding
positions