|Science & Tech Spotlight: Wastewater Surveillance|
Public health officials have detected COVID-19 outbreaks through wastewater surveillance—testing for viruses that enter sewer systems in human waste. The technology has also been used to detect other pathogens and even chemicals, such as opioids. The recent pandemic spurred investment in wastewater surveillance. It could detect public health problems faster than individual testing—so why isn't it more widely used?