Antibodies for vaccinated with/without natural infection

[Hurlburt88]

I took at PCR test at Walgreen's today to confirm or refute the at-home test.  Obviously from that they can determine if Omicon or Delta, but I have no idea if they will tell me.  If they do, I will post.   And my symptoms have remained VERY mild--just a slight runny nose.   

Separately, does anyone reading this board know how long after infection the PCR tests continue to show positive?   I remember something about it could be up to 90 days . . .    

(OK, I am officially guilty of thread drift)