“This could lead to an early warning system for Covid-19 in any second- or third-wave predictions and provide preparedness for future pandemics.”
“However, there is an opportunity of tracing of Covid-19 spread in sewered wastewater treatment systems and non-sewered sanitation systems. This promises to provide us with information that could track and signal hot spots of community transmission.”“Studies suggest that coronaviruses may survive in stool samples for three to four days. Interconnectedness of the wastewater plumbing network can facilitate exposure, as in Hong Kong.
“We have 824 wastewater treatment works in South Africa. Each of these serves a population of known size. This is much easier than individual testing of millions of citizens, “the results of which only give a snapshot of information relevant to those specific people at that precise moment in time”.
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