Posted 5/17/2021 08:29 (#9009469 - in reply to #9009324) Subject: RE: COVID antibody ‘lifespan’
Wyoming
There are several potential reasons why - one of which might be a false positive test (eg, if you had a PCR test with a high cycle count). Another is your age - our immune systems start becoming less effective with age, and that's part of the reason why older patients have less reaction to the COVID vaccinations than young people.