I'm a bit on the fence on this one, at least as far as the AZ vaccine.
My gran died a couple of weeks after having the AZ vaccine due to heart failure and unusual blood clotting/thromboembolic event, the coroner wasn't happy and sent her body to a specialised pathology team in Bristol, which came back as natural causes, coroner still wasn't happy but left it up to family as to whether to take it further.
She almost certainly hadn't had COVID, my grandparents spent the 12 months before that almost in isolation sadly and their carers were testing daily.
I found out later the coroner wasn't happy due to seeing a surge of such cases though a connection to the vaccine would be purely speculation but I suspect it is not quite as extremely rare as stated in those news articles.
My gran died a couple of weeks after having the AZ vaccine due to heart failure and unusual blood clotting/thromboembolic event, the coroner wasn't happy and sent her body to a specialised pathology team in Bristol, which came back as natural causes, coroner still wasn't happy but left it up to family as to whether to take it further.
She almost certainly hadn't had COVID, my grandparents spent the 12 months before that almost in isolation sadly and their carers were testing daily.
I found out later the coroner wasn't happy due to seeing a surge of such cases though a connection to the vaccine would be purely speculation but I suspect it is not quite as extremely rare as stated in those news articles.