The 3D data allowed us to measure the length of complete viral NCs even when they were bent or tilted with respect to the sectioning plane. In the periphery of viral inclusions in the cytoplasm individual NCs could be found. They appeared as rodshaped, striated structures that were more densely stained than the cytoplasm and were on average 711 nm long ( Figure 2A , Table 2 ). NCs were frequently seen at the PM or in filopodia-like membrane protrusions, where they were associated with the membrane along