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. 2020 May 18;5:41. doi: 10.1038/s41541-020-0190-9

Fig. 4. Vaccine-induced serum antibodies in the presence of various excipients.

Fig. 4

Early development research grade lots (not optimized yet) of the virosomal vaccine MYM-V202 under nasal and oral powder, and sublingual (SL) tablets were reconstituted in water and were administered subcutaneously to rats at day 1 and day 28 to determine if excipients of each new solid dosage form were affecting the antibody response. Each final serum at day 42 was analyzed by the Imperacer assays developed during MACIVIVA project, as illustrated in (a). Data of each animal is shown for better appreciating of the inter-individual variation often observed with suboptimal formulations. Approximate net serum (pre-immune deducted) anti-rgp41 antibody concentrations detected at day 42 (b), and anti-P1 antibody concentrations detected at day 42 (c). Data are from a representative Imperacer assay experiment.