jd....your natural immunity will likely last you a lifetime.
Look at SARS-cv-1 folks.....17++ years and still cranking out their antibodies.
Lancet reports that previous infection provided only 47% protection from re-infection in the 65+ age group.
“ jd....your natural immunity will likely last you a lifetime.”
I agree. And if ever my antibodies aren’t swimming around in my bloodstream my bone marrow still knows how to crank them out at a moments notice.