I fear the publicity will create a glut of links to things that happened after having the jab.
I suspect if 30 million have two jabs of AZ in the UK over six months or so this year then you could probably find a way to correlate numerous collections of 'side effects' that are probably there by total coincidence given such big numbers
This is going to be a minefield.
The key question is does that person have any predisposition anyway?
My friend was at hospital yesterday being studied by doctors for her ongoing heart issues. She has had both AZ jabs (the second one last weekend) and has had a clot in her legs before and they think she might have a small one now too.
Not once did they or she suggest the AZ vaccine caused it. But it will be very easy to take that path as this happens across millions of people and when the media get their teeth into this kind of is it or isn't it correlation.