Moderna hasn't been around long enough, but Pfizer has developed quite the slew of lawsuits pertaining to undisclosed, serious, side effects.
Their most recent for zantac users developing cancers.
https://www.drugwatch.com/zantac/lawsuits/
https://www.drugwatch.com/manufacturers/pfizer/
I'm sure the trillions of dollars at stake won't cloud the judgment of these drug companies.
Think I'll stick to my regimen of vitamin d, c, zinc, physical activity and healthy diet.