Tracking Covid-19 Through Human Poop

In the U.S., severe testing delays and shortages have made it difficult to track the spread of Covid-19 in real time. Fortunately for researchers, there’s an alternative surveillance method, though it’s not quite as convenient as a nasal swab: As Troy Farah writes in OneZero, scientists are investigating human poop in sewage systems to track the coronavirus. “It doesn’t matter if an infected person is asymptomatic or has full-blown symptoms — we still see traces of the virus in their waste,” said one researcher.