In contrast to the adult-onset immunodeficiency serum (containing high concentrations of IFNγ neutralizing autoantibodies), serum from patients with TB (n = 6) and three (n = 1 SU and n = 2 sarcoidosis without uveitis) out of six sera from patients with sarcoidosis did not inhibit IFNγ-induced STAT1 phosphorylation in THP-1 cells (Supplementary Fig. 3B). Here, STAT1 is linked to sarcoidosis.