Good luck proving that in court.
Discussion
nostr:npub1sp89mqcudqkwjufst77p8vun8qwj5fcgw3vvzk4vt5nak59v8asqcqr6qm
Of course the question is was he vaxxed?
nostr:npub1sp89mqcudqkwjufst77p8vun8qwj5fcgw3vvzk4vt5nak59v8asqcqr6qm
They do not need to prove it, just show that it is more likely true than not.