Health
Why some countries are looking for coronavirus in sewage – Livemint
People can transmit the virus before they develop symptoms.With countries from Australia to Spain struggling to arrest fresh waves of the contagion, scientists and public health officials are looking to additional tools, including sniffer dogs and drones, to …
Wearing face shields, masks, two layers of gloves and navy cotton overalls, two scientists carefully lift off a metal manhole cover to reveal the cumulative waste of some 400 migrant workers.As one of them lowers a yellow rubber tube into the fetid sewer outside a dormitory in central Singapore, a third explains how samples of the brownish liquid provide a crude snapshot of how the city-state is trying to keep a step ahead of the coronavirus.
Wastewater surveillance — which Dutch scientists sh…
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