24 More undisputed proof that full vaccination does not prevent viral transmission - from the horse's mouth (www.nejm.org) posted 3 years ago by RandomAnon78 3 years ago by RandomAnon78 +24 / -0 22 comments share 22 comments share save hide report block hide replies
Because you can't prove the non existence of something. That is exactly why proving the existence of something is so important. Telling him that he isn't preventing proof means you are ignoring the scientific process.