B, C PAS-stained lung sections of Rag2−/− mice were scanned and inflammation quantified by pixel intensity threshold analysis in ImageJ. FK506-treated animals had increased inflammation at day 2 p.i. compared to control. P = 0.0126 (using Student's t-test), n = 3-5 per group. (C) Close-up of an infectious focus showing increased inflammation and fungal growth in the FK506-treated group. Scale bar: 400 μm. 