  Summary: The CoV-Spectrum website supports the identification of new
SARS-CoV-2 variants of concern and the tracking of known variants. Its flexible
amino acid and nucleotide mutation search allows querying of variants before
they are designated by a lineage nomenclature system. The platform brings
together SARS-CoV-2 data from different sources and applies analyses. Results
include the proportion of different variants over time, their demographic and
geographic distributions, common mutations, hospitalization and mortality
probabilities, estimates for transmission fitness advantage and insights
obtained from wastewater samples.
  Availability and Implementation: CoV-Spectrum is available at
https://cov-spectrum.ethz.ch. The code is released under the GPL-3.0 license at
https://github.com/cevo-public/cov-spectrum-website
