Coronavirus: Research shows sewage could help detect COVID-19 outbreaks

Coronavirus: Research shows sewage could help detect COVID-19 outbreaks
A group of researchers across Quebec is testing local sewage samples in order to track the spread of the virus in the province. As Gloria Henriquez explains, scientists say wastewater can not only help track the spread of the disease, it can even detect an outbreak up to a week before test results can.
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