That works up to a point, but test accuracy makes it risky to be too definitive in interpreting the results. For example the Abbott test appears to have a 15%

That works up to a point, but test accuracy makes it risky to be too definitive in interpreting the results. For example the Abbott test appears to have a 15% false negative rate[1]. That's potentially a lot of infectious people who would incorrectly be ruled out. [1] https://www.npr.org/sections/health-shots/2020/04/21/838794281/study-raises-questions-about-false-negatives-from-quick-covid-19-test https://www.npr.org/sections/health-shots/2020/04/21/8387942...