FIG. 2.

Neutralizing antibodies in mouse and rabbit specimens. (a) Sera from two MVA-vaccinated mice (⧫, ▪) and two naive mice (◊, □) were tested in ELISA for the presence of MVA-binding antibodies. (b) The same mouse sera were tested using the MVA-gfp neutralization assay. (c) An anti-vaccinia virus rabbit serum used for plaque-based titration assay was tested using the MVA-gfp neutralization assay (▪), together with an unrelated rabbit control serum (□). All three panels show the results of one representative experiment out of two.