Figure 3. 6 day proliferation assay responses to pools of NTM-specific peptides.
Percentage Ki67 positive proliferating CD4 + lymphocytes in UK and US NTM-exposed patients (A), UK cord blood samples (B) and number of responding UK and US patients to each peptide pool (C). Assay cut off = stimulation index of 2%. Stimulation index = response in test well/ response in un-stimulated well.