Scientists have started sewage testing at 44 wastewater treatment sites across England in a bid to monitor for fragments of coronavirus genetic material, according to a media report on Monday.
Scientists discovered early during the pandemic that infected people "shed" the virus in their faeces.
Further research concluded that wastewater sampling could provide a signal of a coronavirus outbreak up to a week earlier than medical testing.
The Department for the Environment, Food and Rural Affairs (Defra) said the testing has begun at 44 wastewater treatment sites, the BBC reported.
A Defra spokesperson said the government was working with scientists,