Fig. 7

Dose–response curve and cytotoxicity of Six natural products against VSV-eGFP-SARS-CoV2 infection. IC-50 Values of six compounds A Streptonigrin (0.38 μM), B 17-Aminodemethoxygeldanamycin (0.56 μM), C Didemnin B (0.19 μM), D Scillaren A (0.41 μM), E Proscillaridin (0.22 μM), F Acetoxycyclohexamide (0.64 μM) G negative control 4-methoxychalcon H Antispike human monoclonal antibody Casirivimab (0.045 nM) and were estimated. Data mean ± S.D n = 3 replicate experiments compared to DMSO control, 12 hpi