COVID-19 rapid tests still work against new variants—researchers keep ‘testing the tests,’ and they pass
Credit: Pixabay/CC0 Public Domain By September 2020, just six months after COVID-19 triggered shutdowns across the US, it was clear that SARS-CoV-2, the virus that causes COVID-19, had mutated from its original form. The question quickly arose whether existing rapid antigen tests could detect newly emerging variants. Using clinical samples obtained from diagnostic labs throughout …