Flow cytometry was used to determine the proportions of CD69+ cells (A), programmed death 1 (PD-1)+ cells (B), T-cell immunoglobulin and mucin domain 3 (TIM-3)+ cells (C), and lymphocyte activation gene-3 (LAG-3)+ cells (D) among total MAIT cells in healthy controls (HC) (n = 28) and sarcoidosis patients (SA) (n = 40). Here, CD69 is linked to sarcoidosis.