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. 2022 Jun 24;844:156932. doi: 10.1016/j.scitotenv.2022.156932

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Fig. 3 — Fluctuations of wastewater SARS-CοV-2 viral load levels from samples obtained from the WWTP of Thessaloniki. The relative shedding rates of total SARS-CoV-2, of viral genomes carrying the S:Δ69/70 deletion, indicative of Omicron BA.1 and of other variants without the deletion, are represented by the blue, brown, and green line, respectively. The relative shedding rate of the other variants without the deletion was calculated by subtracting the relative shedding rates of SARS-CoV-2 genomes carrying S:Δ69/70 from the total SARS-CoV-2 respective values.