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  • Title: Ebola and Marburg viruses: II. Thier development within Vero cells and the extra-cellular formation of branched and torus forms.
    Author: Ellis DS, Stamford S, Tvoey DG, Lloyd G, Bowen ET, Platt GS, Way H, Simpson DI.
    Journal: J Med Virol; 1979; 4(3):213-25. PubMed ID: 119829.
    Abstract:
    The development of Marburg virus and the Sudanese and Zaire strains of Ebola virus in Vero cells as visualized by electron microscopy is described. Despite differences in timing, all three strains appear to pass through identical stages of development. Initially there is a large increase in nucleolus material, and viral precursor material arranges itself in spirals and then into tubes. The cells fill with core material, which passes to the plasmalemma, which often proliferates. Each virion passes through the plasmalemma, acquiring a coat of host material. The formation of torus forms is discussed; the branched appearance that is often seen is believed to be an aberrant form. The reasons for this view are put forward.
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