SARS-CoV-2 RNA was extracted using the Kit QIAsymphony DSP Virus/Pathogen Midi kit on the QIAsymphony automated platform (QIAGEN, Hilden, Germany) (n = 11), the NucleoMag 96 Virus (Macherey–Nagel, Dueren, Germany) on automated KingFisher ml Magnetic Particle Processors (Thermo Fisher Scientific, Waltham, MA, USA) (n = 44) and manually with QIAamp Viral RNA Mini Kit (QIAGEN, Hilden, Germany) (n = 137). Full genome sequences were obtained with different protocols, by amplifying 26 fragments as previously described (n = 137)10 (link) or by Ion AmpliSeq SARS-CoV-2 Research Panel (Thermo Fisher Scientific, Waltham, Massachusetts, USA) (n = 11) or by CleanPlex SARS-CoV-2 Panel (Paragon Genomics Inc, Hayward, CA, USA) (n = 44). Sequencing was performed on Illumina Miseq platform for all samples except for 11 that were sequenced with Ion GeneStudioS5 System instrument. The results were mapped and aligned to the reference genome obtained from GISAID (https://www.gisaid.org/, accession ID: EPI_ISL_406800) using Geneious Prime software v. 9.1.5 (Biomatters, Auckland, New Zealand) (http://www.geneious.com) or Torrent Suite v. 5.10.1 (Euformatics Oy, Espoo, Finland) or BWA-mem and rescued using Samtools alignment/Map (Hinxton, UK) (v. 1.9).
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