Sewage samples could help scientists find coronavirus outbreaks before they begin

Scientists working in Sandra McLellan’s lab believe the information they find in sewage samples can help spot trends in the number of COVID cases and give healthcare providers a warning days or weeks before it happens.

“This is really, potentially, very important for early warning,” McClellan said. “If we’re starting to see spikes around the city, we may see it first in sewage.”

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