Scientific American
Writing for Scientific American, Carolyn Barber spotlights how researchers from MIT are developing cheap, fast and easy to use diagnostics for Covid-19 that can deliver results in minutes. “They are called lateral flow assays, but manifestly they are paper-strip tests that have an antibody embedded on filter paper,” writes Barber. “If a saliva sample has coronavirus present, the antibody will bind that viral antigen, turning the test positive, much like a pregnancy test works.”