The science of sewage surveillance could be deployed in countries across the world to help monitor the spread of national epidemics of COVID-19 while reducing the need for mass testing, scientists say.
It’s a crucial tool in the global fight to eradicate polio, and scientists in Britain and elsewhere also use it to monitor antibiotic resistance genes from livestock farming.
Scientists conducting initial COVID-19 sewage studies in Europe and Australia stress that what they are picking up is not live, infectious virus, but dead particles or fragments of the virus’s genetic material that are not infectious. While they found no detectable virus three weeks before the first COVID-19 case was detected, by March 5 - barely a week after the first case was confirmed there - they were able to detect virus fragments.
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