[patmorgan23]

Maybe but if they were related to the vaccine we would expect them to occur more than once in the study group, right?

[mattkrause]

Yup! That’s exactly why they initially list every bad outcome before trying to rule it in/out.

For example, you might be tempted to dismiss deaths due to traffic accidents as being obviously unrelated to a drug. However, if there were a lot of them, it would be prudent to check for potential effects on reaction times or judgement.