Partially correct
Some evidence suggests that vitamin C and D supplementation might prevent or treat respiratory infections, but their effectiveness is still being tested with COVID-19
Claim:
Vitamins C and D are now finally being adopted in the conventional treatment of SARS-CoV-2; Vitamin C at extremely high doses acts as an antiviral drug, actually killing viruses; vitamin D helps the body fight SARS-CoV-2 infection and can cut infection risk.
Misleading
No, the Shanghai government has not recommended intravenous vitamin C as a treatment for COVID-19
Claim:
The government of Shanghai, China has announced its official recommendation that COVID-19 should be treated with high amounts of intravenous vitamin C
Unsupported
Vitamin C supplementation does not prevent viral respiratory infections, such as those caused by coronaviruses, in the general population
Claim:
The coronavirus pandemic can be dramatically slowed, or stopped, with the immediate widespread use of high doses of vitamin C