Can you prove they didn't.
BTW, one wonder how many of those who received the saline solution later tested positive and counted as ‘breakthrough’ infections? BTW2, another proof that anti-vaxxers, contrary to what they’ve claimed, are trying to keep people from being vaccinated.
I could careless about anti-vaxxers or those that got the vax. I did what I wanted....
Osage Orange wrote: “Can you prove they didn’t.”
The obligation to prove is on the person making the claim.