SIRPA and tuberculosis: With TB-infected cattle, percentages of CD172a+ cells in cultures stimulated with either the recombinant fusion protein or an ESAT-6/CFP-10 peptide cocktail (∼14%, Fig. 1C) exceeded (P<0.05) CD172a+ percentages in cell populations from non-infected, BCG-vaccinated, and ΔRD-1-vaccinated cattle (∼4%, Fig. 1C).