Well, in my personal experience with covid, yes, I am absolutely correct. I got it 3 times, so immunity is not complete, but it improves every time. First time

Well, in my personal experience with covid, yes, I am absolutely correct. I got it 3 times, so immunity is not complete, but it improves every time. First time around, I thought I would die. Second time, it was pretty bad but okay-ish, and third time I was still working. It should also be noted that I was particularly tired and stressed out before catching it the second/third time. Anecdotal evidence of course, but indeed 100% correct. That doesn't mean I'm calling all of those people liars. You're jumping to conclusions.