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eVLPs are morphologically similar to authentic filovirus virions. Shown are electron micrographs of EBOV (A) or eVLPs (B)at ×40,000. Particles, obtained by ultracentrifugation of the supernatants of 293T cells transfected with both Ebola GP and VP40 or VeroE6 cells infected with EBOV, were negatively stained with uranyl acetate to reveal the ultrastructure.
