Poor Joe Biden starts to wander from the programme when he enquires after the health of Don Lemon as if to say: "You're black, you took the vaccine and you're not dead?"

Joe Biden definitely infers that he has not taken any vaccines from the inflexion of his speech.

The question asked of Biden is actually part of a puff piece. The whole of that room are keyed, ready to help the President line-up some ammunition at Howard Dean, who had claimed the Bush family had pre-knowledge of the 911 attacks. The question is 'Do you agree with the RNC that this type of attack borders on being a political hate speech?" allowing Bush to unload on Dean. The question, in reality, is designed to make Bush opposition sound like antisemitism or holocaust denial. It is designed to swivel the public away from being able to see the truth of these genocidal slime. Instead Bush's guilt is so intense that he cannot answer the question at all, and the journalist expecting the attack on Dean has to quickly move on to another subject to the amusement of all the other Bush cronies within the room. They are obviously feeling the pain that George Bush senior has been experiencing towards this unreliable member of the installed Rothschild dynasty.

From the Whitehouse Transcription: https://www.whitehouse.gov/briefing-room/speeches-remarks/2021/07/22/remarks-by-president-biden-in-a-cnn-town-hall-with-don-lemon/ 

 “You got the vaccination?  Are you okay?  I mean, you seem…”  “No, it works.”  Or you, you know — or the mom and dad, or the neighbour, or when you go to church, or when you’re — no, I really mean it. 
 
There are trusted interlocutors.  Think of the people — if your kid wanted to find out whether or not there were — there’s a man on the moon, or whatever — you know, something, or, you know, whether those aliens are here or not — you know, who are the people they talk to beyond the kids who love talking about it?