Partial sequencing of the SARS-CoV-2 genomes resulted in the identification of VOCs and VOIs throughout the collection period. It was possible to identify the Mu, Delta, Gamma and Omicron variants in the affluents and effluents of WWTP1 (Table 2); on the contrary, no variants were observed in WWTP2. The table with all suggested variants is available in Supplementary Table S2.
Table 2
Suggested variants of concern after analysis of sequencing of SARS-CoV-2 of WWTP1
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Genes:Mutations marked in red represent the characteristic mutations of variants deposited in databases (https://outbreak.info/).