It will probably cause more cancer than it cures, and a bunch of autoimmune diseases to boot. mRNA vaccines aren't safe, and there is no way to produce a universal vaccine. It has to be custom built to the particular cells and depends on it's antigens. I don't believe it for one minute!
Dark matter, don't get me started. I don't think it exists. For one hundred years they have searched for it and come up dry while new gravitational models work without the need for dark matter. A century wasted looking for a needle in haystack when there wasn't a needle in the first place...
!BBH
!DOOK