Molecular diagnostics--scanning DNA for genes associated with disease--is the most accurate method of early disease detection, but usually requires large, expensive laboratory facilities and trained experts, slowing results. Mammoth’s DETECTR tool was built to bypass many of those obstacles to rapid testing, and in January, the company reconfigured DETECTR to make the first CRISPR-based test for Covid-19. The test is a low-cost option that produces highly accurate results in just 30 minutes--instead of the 24-hour minimum required by many other tests.