We knew of natural immunity for 2,500 years, all the way back to the Athenian plague, I remind you of this substack "The same man was never attacked twice and certainly not fatally"; CDC LIED!

That one statement is natural immunity in all of it's glory 2,500 yr; this is natural immunity, yet these morons, these malfeasants, these inept corrupted CDC, NIH, FDA, Health Canada people pretended

Natural exposure immunity evidence existed even historically from the Athenian plague of 430 BC whereby historical documents showed that recovered persons were protected when re-exposed to infection