In that case, I would look at the chef. Who else had contact with EVERYONE?
Transmission happens 1:1. So if you were there and Uncle Billy had it, and you were on the other side of the room the chances are slim you would get it. It doesn’t work that way.
But, if ever spoon was handled by someone with it, it could transmit that way.
The “super spreaders” are not the guests...its the workers.
The bride and groom and their parents would be the ones that everyone would most likely come in contact with