DDX41 and COVID-19: A family of Abs obtained from the B cells of patients with COVID-19, including 2–15, 1–57, 2–7, and 5–24, have been found to have potent neutralizing activities against authentic SARS-CoV-2 in vitro with an IC50 of 0.7 ng/mL, 8 ng/mL, 3 ng/mL, and 8 ng/mL, respectively [205, 206].