I don't think this is really a UK-specific issue - it presumably would have come out in this way whoever approved it first (if it was actually a vaccine reactio

I don't think this is really a UK-specific issue - it presumably would have come out in this way whoever approved it first (if it was actually a vaccine reaction). It's also rather surprising to me (as a relative layman) that this wasn't picked up during safety trials. I get anaphylactic reactions to some food and medicines and carry an EpiPen. There are a few vaccines which have been counterindicated for me due to this so I have always thought it's a relatively well-known potential side effect from at least some vaccines (and other medicines of course). As such I would have expected it to be looked/checked for during safety trials.