Abstract: We studied the morphological characterization of epidemic hemorrhagic fever virus with electron microscopy. We observed that epidemic hemorrhagic fever viruses are bunyavirus-like, enveloped spherical particles. The average diameter of the virions is 113nm, larger than that of other members of bunyaviridae, and the variation of the diameter of the virions is also bigger. The morphogenesis of epidemic hemorrhagic fever virus is more complicated, may be there is a pattern different from that of other members of bunyaviridae.

Key words: epidemic hemorrhagic fever virus, morphology of virus, electron microscope