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Antibody to VLP-L1 in rabbits in experiment 2. Rabbits were immunized through the intradermal (A), intranasal (B), or intramuscular (C) route, and antibody titers were determined by ELISA using VLP-L1 protein. Results are shown for rabbits tested prior to immunization (pre-immune), 8 weeks after the primary injection (post-primary), and 13 weeks after the primary injection (i.e., 5 weeks after the homologous VSV-L1 booster injection).
