These are short term effects.
This is a new type of vaccine that induces the body to display a COVID protein that the body reacts to.
Who knows how many people will have a long term reaction, aka an autoimmune reaction? Haven’t seen any info on that or how they created this new vaccine so quickly.
Has it been studied? No.
Who is liable if you have a reaction? Probably you, if you volunteered and signed a release.
I’m one of the volunteers in the moderna trial, got my shots end of July and end of August. Went back end of September to give blood samples and go back to give more in February. Time will tell