Actually, like all viruses, Covid never truly "leaves", it just mutates and/or is rendered harmless by herd immunity AND vaccines that actually have been properly vetted to limit the number of negative side effects.
Until Covid, I weathered all flus and viruses without getting vaccinated or having to be hospitalized as an adult. There are alternative ways of dealing with Covid (homeopathic, etc.) like a blending of traditional and "alternative" medicine. Nothing is perfect, but to stick one's head in the sand regarding the poor responses to this particular virus is foolish....your response here being a typical example of that foolishness.
Now, back to the topic of the OP. Any further thoughts on that?