this is the first authorized in the united states it works with chemical compounds associated with covid-19 infection in breath samples. and it can provide results in under three minutes. now, this breath test is authorized for use in doctors' offices, mobile testing sites, hospitals. it's not authorized for at-home use. but who knows where the technology is heading. maybe that can be a development in the future. but now for now, official dr. jeff sherman said in this statement, today's authorization is yet another example of the rapid innovation occurring with diagnostic tests for covid-19. and christi and alex, here's what we know about the accuracy of this test. the fda says the test correctly identified about 91% of positive covid-19 samples. and about 99% of negative samples. that was in a study of more than 2400 people. the fda also says the company