Fund a research which will be conducted by an an independent organisation (for example an university) about clinical use of vitamin C for both prevention and treatment of Covid and other viral infections and Sepsis
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Other researchers pointed vitamin C (including IV administration of sodium ascorbate) can help prevent virus diseases and also improves clinical results in treatment.
Literature (examples):
https://in.eregnow.com/cdn/ucontent/ticketing/2436/file_596814037_476.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7405920/
https://www.seanet.com/~alexs/ascorbate/197x/morishige-f-etal-j_int_assn_prev_med-1978-v5-n1-p54.htm
in all of these researchers report an positive effect of high doses of vit C.