Those who were SARS-CoV-2 positive were younger (57 years vs 66 years; P=0.002), had baseline higher total lung capacity (81% vs 73%, P=0.045), similar forced vital capacity (71% vs 67%, P=0.37), and similar diffusion capacity of carbon monoxide (71% vs 62%, P=0.10) at baseline, similar prevalence of honeycomb fibrosis (43% vs 30%; P=0.22), similar baseline leukocyte count (9.4 vs 8.4; P=0.27), and marginally lower C-reactive protein (CRP) (4.9 vs 9.3; P=0.07) (Table 1). The gene discussed is CRP; the disease is fibrosis.