Figure 2
From: Human herpesvirus-6-associated acute lymphadenitis in immunocompetent adults

Transmission electron microscopy (TEM) micrographs of infected cervical lymph node. (a) Naked nucleocapsids are present in the nucleus (solid arrows). Nuleocapsids surrounded by a thick fuzzy coat (tegument) are present in the cytoplasm (arrowheads). Some of the tegumented nucleocapsids in the cytoplasm are also surrounded by an outer envelope with spikes (open arrows). Mature virions composed of the nucleocapsid, the tegument and the envelope with spikes are shown in the inset. Bar equals 1 μm. (b) Several clusters of mature virions in membrane-bound vacuoles (endosomes) are present in the cytoplasm of this cell. Bar equals 0.5 μm.