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Catalan Surveillance Network of SARS-CoV-2 in Sewage

Lluís Corominas; Neus Collado; Laura Guerrero-Latorre; Nerea Abasolo-Zabalo; Eduard Anfruns-Estrada; Gabriel Anzaldi-Varas; Sílvia Bofill-Mas; Albert Bosch; Lluís Bosch-Lladó; Antoni Caimari-Palou; Núria Canela-Canela; Gemma Chavarria-Miró; Josep M del Bas-Prior; Yaimara Espiñeira-Robaina; Eva Forés-Gil; Cristina Fuentes; Rosina Gironés; Susana Guix; Ayalkibet Hundesa; Marta Itarte; Roger Mariné-Casadó; Sandra Martínez-Puchol; Adán Martínez-Velázquez; Rosa M Pintó; Marta Rusiñol; Joan Teichenne-Jané; Helena Torrell-Galceran; Mario Vázquez-Portero; Carles Borrego

Other(s)
Mercè Aceves-Torrents; Elisenda Alba-Pla; Antonio Alonso; Tomàs Barranco; David Batalla; Ignasi Batallé-Barber; Pilar Boira; Esther Bosch; Jaume Cabré; Claudia Carbonell-Correas; Maribel Carrasco-Llop; Josep Maria Colell-Joval; Amanda Con; Sunsi Ferrer; Ivan Fraga; Josep Freixes-Jalmar; Iñaqui Garcia; Josep Gassó; Àngels Gil-Perez; Anna Huget; Maria Jou; Carlos A Juncal; Raül Lattre; Ángel Lázaro-Gastón; Marta Llopis; Anna Lupón; Beatriz Luque; Meritxell Martí; Mireia Martínez; Begoña Martínez; Eduard Moliné; Jordi Muñoz; Oscar Olazabal; Jordi Palatsi-Civit; Enric Pallarès; Montser Palomes-Fernández; Jordi Palomo; Emilio Pañart-Mur; Santi Pelegrí; Àngel Perati-Lloan; Mónica Porroche; Josep Pueyo-Farrero; Cristina Pujol; Sergi Rebull; Àlex Rodero; Alba Rovira i Casas; José A Sánchez; Noemí Segura; Jose M Sempere-Pico; Núria Solé-Llombart; Josep M Tardà-Torrabadella; Eva Torrecillas; Iñigo Urruchi; Àngels Vidal-Nogué; Salvador Vilella-Vilalta; Helena Villagrasa

The Catalan Surveillance Network of SARS-CoV-2 in Sewage started in July 2020 to monitor 56 wastewater treatment plants (WWTPs) all over the country representing the sewage from the 80% of the total population.  The sampling plan consist in a weekly collection of 24 hours-composed-flow proportional water sample from the entrance of each WWTPs. The raw sewage samples are send to references laboratories for analysis within 24h after collection. Samples are concentrated, the RNA extracted and finally amplyfied using two target genes (N1/N2 or N1/IP4).

Here, we periodically release the dataset of the results obtained for each WWTP analysed with sampling date, gene copies per litre for each viral target, the daily flow from the WWTP, rain events registered and extra comments.

Moreover, since November 2021, the network analyses periodically the presence of Variants of Concern (VOCs) in the studied WWTPs. Raw data generated from sequencing is available upon request at coordinaciosars@icra.cat.

This program is funded by the Catalan Government. The coordination team is composed by membres from the Catalan Agency of Water, the Catalan Public Health Agency and the Catalan Institute for Water Research.
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