For this assay, those come out to a sensitivity of 97.1% (positive results detected when there should have been a positive) and a specificity of 98.5% (negative results when there should indeed have been a negative). Flipping those around, you’ll see that about 1.5 to 3% of the time, you will tell someone who’s infected that they’re not, or tell someone who’s not infected that they are. That’s about what you can expect for a test that sells for $5 and takes 15 minutes to read out with no special equipment, but such tests (if used properly) can be very valuable.
The SARS-CoV-2 Rapid Antigen Test is for use in point of care settings for both symptomatic and asymptomatic people… The test has a sensitivity of 96.52% and a specificity of 99.68%, based on 426 samples from two independent study centers.
At launch, there will be 40 million SARS-CoV-2 Rapid Tests available, per month. This capacity will increase more than two-fold at the end of this year to help with testing demands of healthcare systems globally.
Similar to ABT’s BinaxNOW test (#msg-157908540), Roche’s rapid COVID-19 test uses lateral flow (rather than PCR) and detects SARS-CoV-2 protein (rather than RNA).