a complete idiot knows exactly why. And it's exactly what the public health and medical experts were telling us all along. It's both. If you bothered to listen to any of the public health experts, you would know that as more and more people acquired some level of immunity through either vaccination, exposure or both, that the severity of covid would begin to wane. We were also told that viruses tend to mutate to become MORE contagious, but less deadly. A virus that kills its host too quickly or makes their host too ill to do function tends to be self limiting and doesn't replicate. The so the viruses that tend to become dominant are the ones that are more contagious but less deadly. Natural selection at work in the world of viruses.

And yes, the polticization of covid was the dumbest thing I've ever seen. And it was almost exclusively from one side. Here's the result of the politicization of covid by republicans in one chart. Sorry, but you don't get to "both sides" this one.