There has been no conclusive scientific evidence which backs up your claim, the only evidence of someone catching coronavirus twice (and even then, the virus strains were different) is apparently some guy in Hong Kong, but out of over 30 million people that have contracted the virus, that's pretty good odds, and more importantly the info doesn't go into how virulent the virus was the second time he caught it. Again, provide the evidence or just keep rabbiting on, (you won't though, because you don't have any haha).