Yesterday I watched a talkshow on TV. A medical doctor - one of those people you saw on TV during the pandemic, she was showin while at work in an ICU I think - was saying it was found that even after COVID, when patients were supposed to have been healed, there were residual debris of the virus found in diverse organs and places in the body.

Which sounds strange. Weren't we always taught that this is what our immune system is for? Isn't our immune system supposed to get our body rid of particles and stuff that don't belong in it?