Notably, the levels of IL-8 were significantly higher in the lungs of patients with HP (p = 0.0007), non-allergic asthma (p = 0.009), amiodarone lung (p = 0.006), and EGPA (p = 0.01) in comparison to patients with sarcoidosis. The gene discussed is CXCL8; the disease is hypersensitivity pneumonitis.