ction (MOIs, 0.01, 0.02, 0.2, and 0.8) of SARS-CoV-2, the EC50 for CQ (2.71, 3.81, 7.14, and 7.36 μM) was slightly lower than that of HCQ (4.51, 4.06, 17.31, and 12.96 μM). Consequently, the SI of CQ (100.81, 71.71, 38.26,