As of now 'we don't know', and I think nothing less or more of those that are happy to be vaccinated and elbow their way to the front of the queue. ...
From my perch on the fence, there will always be adverse effects to any drug, just like foodstuffs (nuts, dairy, etc), so it is no more than expected...
I won't insult all Americans by calling many stupid, but it seems to many Australians that the level of education in the US has dropped dramatically...