English: Release of spherical Marburg virus particles at four days post infection. Animation through a z-series of 2 nm digital slices of a double axis tomogram, reconstructed from a tilt series taken of a ∼300 nm thick section of a MARV-infected HUH-7 cell at four days post infection. Coloured overlay shows a 3D surface model of membranes and cytoplasm (yellow) and representations of the viral NCs (blue). Several spherical and six-shaped virus particles are seen near the cell surface and surrounded by cell-derived vesicles and debris.