SAA levels of patients with sarcoidosis (31.0 μg/mL), HP (23.4 μg/mL), (E)GPA (36.9 μg/mL), and IPF (22.1 μg/mL) were all higher than SAA levels of healthy controls (10.1 μg/mL). The gene discussed is GYPA; the disease is hypersensitivity pneumonitis.