The one university cited, not the three you claimed, is an obscure, unsubstantiated source from Korea. Try a little harder to find something with scientific credibility.
Big Pharma is currently working on "protein based" Covid vaccine as option to mRNA Covid vaccine.
The people I know who succumbed to liberal group think peer pressure and took the numerous JABS have developed various autoimmune diseases attributed to the mRNA jab. Of course the group think peer pressure libs will deny and defend the mRNA jabs because they struggle cognitive dissonance