The entire government and news media needs to be fired over this: It was well known that vitamin D helped prevent the flu and helped prevent respiratory infections and it was known that vitamin D is very safe with little to no side effects and if you overdose with it, the symptoms are usually mild and never life threatening and easily reversible simply by stopping D supplementation for a few weeks. In other words, we should have all been told to take vitamin D from as far back as last February. The only variable was that we didn't know whether vitamin D would help with Sars-2 Covid, and there was no serious reason to think that it would hurt.
Then the studies trickled in over 2020. It is clear now. Vitamin D reduces risk of catching Sars-2 by 50%, it then reduces the severity such that your risk of having to go to the hospital by 50%, then if you go to the hospital it reduces your risk of dying by well over 50%. This means that D would have reduced the Covid deaths by about 87% had we been told to take it last February. And now as we head into respiratory virus season, and more people begin to suffer and die from respiratory viruses, still nothing, no word about how taking a simple vitamin would be more effective than any vaccine ever could be. And vitamin D has the side effect of reducing cancer risk by 50%.
https://www.grassrootshealth.net/blog/vitamin-d-helps-fight-covid-19-part-2/?fbclid=IwAR1j0wPijMMLF1CyK9M38Ab9fI2Qvy3MgUM_86jvxxfb6FZJO0PciYp3lsc