You might say COVID-19 testing has gone down the drain. It doesn’t mean it’s no longer a problem. But it’s helping us know how big of a problem. People pass COVID-19 in their feces, which then flows ...

To better understand COVID-19’s spread during the pandemic, public health officials expanded wastewater surveillance. These efforts track SARS-CoV-2 levels and health risks among most people, but they ...

Each Tuesday, a team of scientists at the University of Alaska Anchorage spend much of their day carefully extracting and testing microscopic strands of ribonucleic acid found in a jug of wastewater ...

Some 17 US states have detected "very high" levels of Covid in their wastewater, according to data from the Centers for Disease Control and Prevention (CDC). A rise in levels of Covid found in ...

In north Denver, next to the South Platte River is a series of big pools. This is Metro Water Recovery, a treatment plant — the state’s largest according to employees. On a visit there, you can see ...