There are several studies where vitamin D works (amazingly well), and one study where it does not.
But in the study where it does not work, it's an oral supplement given after hospitalization. Oral vitamin D takes a while to elevate blood levels so the fact that such regimen doesn't work, doesn't prove much.
Let's suppose we rush through a vaccine that turns out to cause fatal complications in 0.01% of the population, and we give it 90% of the population. Congratulations: you just killed more people to date then coronavirus has.
Might wanna check that math, dude.
Even with your preposterously deadly made-up vaccine, you’re only hitting about one month’s worth of COVID deaths.
But in the study where it does not work, it's an oral supplement given after hospitalization. Oral vitamin D takes a while to elevate blood levels so the fact that such regimen doesn't work, doesn't prove much.