Soldato
well i was unaware of any of
that.
You were honestly unaware of that?
Okay, I'll give you the benefit of the doubt. So the difference with colds and flus is that they can only attach to cells found in the sinuses/lungs, meaning infections with that virus can only ever occur there. This means you can get some nasty colds, especially flus, and rarely pneumonia depending on the damage.
COVID attaches to ACE2. This enzyme can be found in almost every cell in the body. Every major organ has it, but it is most concentrated within the cardiac system. In short, this means that the virus can virtually infect anywhere it wants to in the human body, not just the lungs. Some people may get off fine with just a lung infection, but unfortunate people can find their hearts and organs permanently damaged, even with just mild infections.
And now imagine rolling the dice on that 4x+ a year. It's utterly bonkers, humanity has never faced anything like this in recorded history.