Coronavirus found in Paris sewage points to early warning system
21/04/2020 por Tatu D'OqueiBy sampling sewage across greater Paris for more than 1 month, researchers have detected a rise and fall in novel coronavirus concentrations that correspond to the shape of the COVID-19 outbreak in the region, where a lockdown is now suppressing spread of the disease.
Link: https://www.sciencemag.org/news/2020/04/coronavirus-found-paris-sewage-points-early-warning-system