IFNA2 and COVID-19: COVID‐19 patients with only BAB to IFN‐α/β (n = 48) did not exhibit significantly enhanced levels in laboratory parameters compared to those without anti‐IFN‐I antibodies, with the only exception of LDH (Panel B) and d‐Dimer (Panel C) (Fig. 2, p < 0.05 for all the determinations, using Mann‐Whitney test).