Sample panels of SARS-CoV-2 cases were retrospectively whole-genome sequenced. In three individuals, samples of upper and lower respiratory tract resulted in identical sequences suggesting virus stability including the spike protein cleavage site. In a fourth case, low-level intra-host genomic evolution and a unique 5-nucleotide deletion was observed.
Keywords: Intra-host virus evolution; ORF8 5-nucleotide deletion; Postmortem; S-614D; SARS-CoV-2 genome sequences; Upper and lower respiratory tract.
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