Place your theory here...

[billybassett]

And now Boris is self isolating again to make us all real scared we could recatch it, die, infect others, end the world.#

If he did have it in April he's bloody immune from it. He can't be infectious. He can't develop symptoms his body has developed the immune responses all ready.

Keep us scared, keep us controlled, keep buying the faulty tests, force us to take a vaccine so we can travel, work and live. Keeps those tory pockets full of cash

[baggy1]

And now Boris is self isolating again to make us all real scared we could recatch it, die, infect others, end the world.#

If he did have it in April he's bloody immune from it. He can't be infectious. He can't develop symptoms his body has developed the immune responses all ready.

Keep us scared, keep us controlled, keep buying the faulty tests, force us to take a vaccine so we can travel, work and live. Keeps those tory pockets full of cash

For the three theories in the highlighted bit:

Short term it appears that he is very unlikely to recatch it, we don't know about long term yet simply because we haven't had it around for any long term.

We don't know that he can't be infectious in the same way we don't know if he can be infectious. 

See point 1.

[FenlandBoing]

And now Boris is self isolating again to make us all real scared we could recatch it, die, infect others, end the world.#

If he did have it in April he's bloody immune from it. He can't be infectious. He can't develop symptoms his body has developed the immune responses all ready.

Keep us scared, keep us controlled, keep buying the faulty tests, force us to take a vaccine so we can travel, work and live. Keeps those tory pockets full of cash

If he didn't isolate you'd probably be moaning about one rule for him and one rule for the rest of us. 

Some people have caught it twice. He's wise to isolate for his own safety and that of others.

[Ted Maul]

More likely he needs some nationwide sympathy after being hammered by the general public for the last six months.

[The liquidator]

And now Boris is self isolating again to make us all real scared we could recatch it, die, infect others, end the world.#

If he did have it in April he's bloody immune from it. He can't be infectious. He can't develop symptoms his body has developed the immune responses all ready.

Keep us scared, keep us controlled, keep buying the faulty tests, force us to take a vaccine so we can travel, work and live. Keeps those tory pockets full of cash

Where does it actually say you can't catch it again??