FGA and tuberculosis: Compared with the DS‐TB group, the abundances of peptidoglycan recognition protein 2 (PGLYRP2, Swissprot: Q96PD5), fibrinogen alpha chain (FGA, Swissprot: P02671) and monocyte differentiation antigen CD14 (sCD14, Swissprot: B2R888) were significantly up‐ (P < .001), up‐ (P < .001) and down‐regulated (P < .01), respectively, in the MDR‐TB group (Figure 4A‐C).