It sort of says itself: if you put a filter in the stream of air entering your mouth and nose, you get fewer “things” entering your respiratory system. And respirators are very good at catching viruses.
Category: Research
More and more proof sees the light of day that Covid-19 at least to some degree affects T-cells and either kill them or exhaust them. This is bad news as we have a finite number of T-cells and it also means that the more Covid-infections we have, the fewer working T-cell we will have.
As humans push further and further into animal habits and their space decrease, the risk of transfer of harmful patogens increase. It might have been what happened with Covid-19’s SARS-Cov-2.