FIG. 3.

Identification of immunoreactive OmpATb peptides recognized by T cells from M. bovis-infected cattle selected for reaction with OmpATb. (A) Responder frequencies in M. bovis-infected cattle (n = 4; data are percentages of cattle tested that recognized a particular peptide). (B) Mean IFN-γ responses after peptide stimulation in M. bovis-infected cattle (n = 4; data are ΔOD₄₅₀ values [OD₄₅₀ with peptide minus OD₄₅₀ without peptide]). (C) Mean IFN-γ responses after peptide stimulation in uninfected cattle (n = 10; data are ΔOD₄₅₀ values [OD₄₅₀ with peptide minus OD₄₅₀ without peptide]).