[Structures of oncornaviruses of C-typ-negativ staining technique by electron microscopy (author's transl)]

Typ-C viruses of bovine enzootic leucosis and other typ-C viruses were demonstrated by negativ staining technique and also the RNA-protein complex respectively the nucleocapsid of helical symmetry in the shape of coral bead. Now the well defined morphology of the typ-C viruses enable to identificate to be used in electron microscopy practice.