Danish mask study with the largest randomized controlled trial to date w/ 6,024 subjects shows medical masks were NOT effective protection against infection

That isn’t actually the conclusion of the Danish study. The conclusion was as follows:

Conclusion:

The recommendation to wear surgical masks to supplement other public health measures did not reduce the SARS-CoV-2 infection rate among wearers by more than 50% in a community with modest infection rates, some degree of social distancing, and uncommon general mask use. The data were compatible with lesser degrees of self-protection.

Masks didn’t reduce the infection rate by more than 50 percent is the most they could say with a high degree of certainty. That’s quite a vague statement. Additionally, there are numbers stated in the study that could easily be misinterpreted or deliberately misrepresented—which could explain why JAMA, NEJM & Lancet didn’t publish it.

The most important limitation is that the findings are inconclusive, with CIs compatible with a 46% decrease to a 23% increase in infection.

CIs are “Confidence Intervals”, which relate to the degree of confidence in the accuracy of the findings. When they’re compatible with a range of observed statistical results that runs from a 46 percent decrease to a 23 percent increase, you’re really not zeroing in on much of anything with a very high degree of certainty. This is why the bottom line conclusion is such a vague statement. The most they can say with a high degree of confidence is that masks didn’t reduce the likelihood of infection by more than 50 percent.

Taking Vitamin D3 seems to be the ONLY proven protection against the corona virus.
Masks, used by untrained people who do touch their masks or who wear them incorrectly, or who wear masks made of knitted materials, offer only a false sense of security.