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IHC Staining of Liver and Spleen. Virus antigen in liver and spleen samples were labeled with a rabbit anti-Zaire Ebola VLP polyclonal antibody. Virus antigen specific staining is was compared at different time points (A). The incidence of viral straining over time was measured in the liver (B) and spleen (C) using the following scale: 0 = no staining, 1 = rare, 2 = frequent, 3 = diffuse.
