The Catalan Surveillance Network of SARS-CoV-2 in Sewage: design, implementation, and performance

Wastewater-based epidemiology has shown to be an efficient tool to track the circulation of SARS-CoV-2 in communities assisted by wastewater treatment plants (WWTPs). The challenge comes when this approach is employed to help Health authorities in their decision-making. Here, we describe the roadmap for the design and deployment of SARSAIGUA, the Catalan Surveillance Network of SARS-CoV-2 in Sewage. The network monitors, weekly or biweekly, 56 WWTPs evenly distributed across the territory and serving 6 M inhabitants (80% of the Catalan population). Each week, samples from 45 WWTPs are collected, analyzed, results reported to Health authorities, and finally published within less than 72 h in an online dashboard ( https://sarsaigua.icra.cat ). After 20 months of monitoring (July 20-March 22), the standardized viral load (gene copies/day) in all the WWTPs monitored fairly matched the cumulative number of COVID-19 cases along the successive pandemic waves, showing a good fit with the diagnosed cases in the served municipalities (Spearman Rho = 0.69). Here we describe the roadmap of the design and deployment of SARSAIGUA while providing several open-access tools for the management and visualization of the surveillance data.

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Bibliographic Details
Main Authors: Guerrero-Latorre, Laura, Collado, Neus, Abasolo, Nerea, Anzaldi, Gabriel, Bofill-Mas, Sílvia, Bosch, Albert, Bosch, Lluís, Busquets, Sílvia, Caimari, Antoni, Canela, Núria, Carcereny, Albert, Chacón, Carme, Ciruela, Pilar, Corbella, Irene, Domingo, Xavier, Escoté, Xavier, Espiñeira, Yaimara, Forés, Eva, Gandullo-Sarró, Isabel, Garcia-Pedemonte, David, Girones, Rosina, Guix, Susana, Hundesa, Ayalkibet, Itarte, Marta, Mariné-Casadó, Roger, Martínez, Anna, Martínez-Puchol, Sandra, Mas-Capdevila, Anna, Mejías-Molina, Cristina, Moliner i Rafa, Marc, Munné, Antoni, Pintó, Rosa María, Pueyo-Ros, Josep, Robusté-Cartró, Jordi, Rusiñol, Marta, Sanfeliu, Robert, Teichenné, Joan, Torrell, Helena, Corominas, Lluís, Borrego, Carles M.
Other Authors: Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
Format: artículo biblioteca
Language:English
Published: Nature Publishing Group 2022-10-06
Subjects:Environmental microbiology, Virology, Environmental sciences, Microbiology,
Online Access:http://hdl.handle.net/10261/281518
https://api.elsevier.com/content/abstract/scopus_id/85139304838
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Summary:Wastewater-based epidemiology has shown to be an efficient tool to track the circulation of SARS-CoV-2 in communities assisted by wastewater treatment plants (WWTPs). The challenge comes when this approach is employed to help Health authorities in their decision-making. Here, we describe the roadmap for the design and deployment of SARSAIGUA, the Catalan Surveillance Network of SARS-CoV-2 in Sewage. The network monitors, weekly or biweekly, 56 WWTPs evenly distributed across the territory and serving 6 M inhabitants (80% of the Catalan population). Each week, samples from 45 WWTPs are collected, analyzed, results reported to Health authorities, and finally published within less than 72 h in an online dashboard ( https://sarsaigua.icra.cat ). After 20 months of monitoring (July 20-March 22), the standardized viral load (gene copies/day) in all the WWTPs monitored fairly matched the cumulative number of COVID-19 cases along the successive pandemic waves, showing a good fit with the diagnosed cases in the served municipalities (Spearman Rho = 0.69). Here we describe the roadmap of the design and deployment of SARSAIGUA while providing several open-access tools for the management and visualization of the surveillance data.