Total nonsense. Never before have the healthy been quarantined, except for Astronauts returning from the Moon and travelers arriving from a diseased area.
The professor’s politics shouldn’t matter if she is a real scientist but I thought that the video should have been edited to leave out the politics.
There is lots of evidence that exposure to a virus confers immunity.
You like Ivor so you must be having a go at me. I am a conspiracy theorist in your opinion.OK I am a big boy now. I can take it.
Oops! The mask slipped there. I don’t know where to begin to analyse that outburst.

Perhaps you could contemplate updating your profile statement. The Science that you choose to see as correct seems to be your Dogma. I suggest something like:
“My Science is my Dogma”