I was referring to genetic testing for the T-Cell alleles (that the study refers to) that were more present in some of the population, before Covid hit.

I've already been vaccinated and exposed, so I'm not entirely sure how that effects the results of testing for those alleles now (I'm no immunologist)... but just curious

And just a side note for clarity: "Antibody" testing will detect prior infection and/or vaccination. "Antigen" testing can detect current infection, which is what I think you're referring to. It gets confusing, and I STILL get tripped up with my terminology... and I work directly with covid-19 patients (in the hospital) and the testing to see if we can take them out of isolation precautions. I actually just had to do a swab for "Antigen PCR" testing 2 days ago, which is why it's kinda fresh in my brain right now. So "antibody" means exposed (either infection or vaccination), but doesn't really mean "contagious". "Antigen" means possibly still contagious... I'm pretty sure. This is not medical advice lol