DR LINDA STANNARD, UCT / SCIENCE PHOTO LIBRARY DR LINDA STANNARD, UCT / SCIENCE PHOTO LIBRARY
Herpes simplex viruses. Coloured transmission electron micrograph (TEM) of a section through a cell infected with herpes simplex viruses. The viruses (yellow spheres) are accumulating in the cell's inner nuclear membrane and have a core of DNA (deoxyribonucleic acid) genetic material. These are herpes simplex type I viruses, which are associated with oral cold sores. Herpes simplex is one of the most common viral parasites in humans. They cause small, fluid-filled blisters which may persist for weeks and, if touched, can spread the virus. Antiviral drugs may be helpful. Negatively stained. Magnification unknown.
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