Originally Posted by
mmsmom
So doctor said they discussed in office and believe she currently does not have Covid. Her 1/1 positive PCR was true infection. Her current symptoms are something else. Her positive home test is because you can test positive on an Antigen test for a long time after infection. He also said some home tests can show positive after a vaccine dose.
So basically Dr thoughts are complete opposite of what my Googling told me. I still don’t know and keeping her isolated for now. I could believe Dr if I wasn’t PCR positive with the same symptoms at the same time (Dr did know this). I will see what school has to say. Thankfully at this point we’re on day 3 of our 5 days anyway and both of us are much better today.
Clearly this doctor is not up to date.
Antigen tests are most sensitive when there is active infection and the patient is contagious. PCR can be positive for a long time after an infection. Vaccines do not cause positives on the home tests.
Because PCR can be positive for a long time, I would be more inclined to think that the positive PCR (with negative antigen) on 1/1 was due to an "old" asymptomatic infection with Delta that you just happened to catch due to the post-exposure testing, and this is a new infection with Omicron.
Mama to three boys ('03, '05, '07)