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Animal DNA viruses analyzed by colour electron microscopy.

Black-and-white and colour transmission electron micrographs of three DNA viruses (infectious bovine rhinotracheitis virus, bovine adenovirus type 5 and Molluscum contagiosum) are comparatively presented. The colour images have been obtained by an original method of computer-assisted analogic processing of black-and-white micrographs, using the Romanian electronic device OPTIMISCOP. A comparative analysis of the two types of images demonstrates the variety of additional information provided by the new processing technique.