New coronavirus variants detected in sewage before showing up in tests
William West/AFP via Getty Images
VARIANTS of coronavirus can be detected in wastewater long before they are spotted by tests in people.
Those infected with coronavirus shed it in their faeces. Hundreds of municipalities around the world already test wastewater for the presence of the virus as part of their surveillance operations. Now research suggests they could also check which genetic variants are circulating to flag up potentially dangerous new versions.
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