Regular COVID-19 tests can’t detect which strain you’re infected with

https://www.brproud.com/news/regular-covid-19-tests-cant-detect-which-strain-youre-infected-with/

Austin doctor tests positive after getting COVID-19 vaccine, calls it 'bad luck'

https://www.kvue.com/article/news/health/coronavirus/vaccine/coronavirus-vaccine-doctor-tests-positive-bad-luck-timing/269-5c845a86-ab48-4be8-8f52-c90b5b573d14