Term:Variant of SARS-CoV-2

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Variants and synonyms

  • SARS-CoV-2 variant


These SARS-CoV-2 variants are designated as variants of concern (VoC) if they are associated with select characteristics, such as increase in transmissibility or virulence, decrease in effectiveness of vaccines and/or therapeutics, or interference with diagnostic test targets. Source: https://files.covid19treatmentguidelines.nih.gov/guidelines/covid19treatmentguidelines.pdf

Encyclopaedic information

Emerging data regarding the prevalence and clinical significance of SARS-CoV-2 variants, and the efficacy of monoclonal antibodies against variants, may inform the choice of specific anti-SARS-CoV-2 monoclonal antibody therapy in the future. Source: https://files.covid19treatmentguidelines.nih.gov/guidelines/covid19treatmentguidelines.pdf


Member States should also strongly discourage all non-essential travel to and from areas with a high prevalence of SARS-CoV-2 variants of concern or interest and to and from areas with an unknown prevalence due to insufficient sequencing volume.

Source: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32021H0961


  • new SARS-CoV-2 variant
  • to track SARS-CoV-2 variant
  • to study SARS-CoV-2 variant


  • variant of SARS-CoV-2: >1000
  • SARS-CoV-2 variant: >1000


"SARS-CoV-2 variant" is used more often than variant of "SARS-CoV-2".


Variants and synonyms

  • SARS-CoV-2 variant


However, the SARS-CoV-2 variant is likely to share a similar mechanism of action where the recombinant SARS-CoV-2 spike protein downregulates ACE2 expression and thereby promotes lung injury, as seen in the SARS-CoV variant [19].

Source: https://www.biorxiv.org/content/10.1101/2020.03.29.014381v1


We analyzed 68 sequences of SARS-CoV-2 variants in GISAID and found 4 variants with mutations in RBD (one has N354D/D364Y, two have V367F, and one has F342L).

Source: https://www.biorxiv.org/content/10.1101/2020.02.16.951723v1


  • sequence of SARS-CoV-2 variant


  • variant of SARS-CoV-2: does not occur in the corpus
  • SARS-CoV-2 variant: >1000 (total of 4 occurrences in the corpus)
  • no occurrences of “delta” or “omicron” in this context


The concept is absent from the corpus.


Variants and synonyms

  • variant
  • strain
  • SARS-CoV-2 variant


Omicron has been proven to reinfect those who have been infected with other variants of SARS-CoV-2.

Source: nytimes.com

The new variant is now said to be half as bad as Delta which makes it still 5x more deadly to the unvaccinated.

Source: dailymail.co.uk

I'm not convinced that this new strain is any milder than previous strains, but even if so; be very sure that the next worse strain is just around the corner.

Source: https://www.dailymail.co.uk/news/article-10274825/Anti-lockdown-protestors-hit-streets-York-Austria-Netherlands.html#comments

The Public Health England report " SARS-CoV-2 variants of concern and variants under investigation in England [...]

Source: https://www.dailymail.co.uk/news/article-10280137/Italian-anti-vaxxer-used-FAKE-ARM-jab-avoid-restrictions-57-year-old-dentist.html


  • new variant
  • deadly variant
  • mild variant
  • super mutant variant
  • omicron variant
  • to discover a variant
  • to bring in a variant
  • to spread a variant
  • a variant appears
  • a variant comes
  • a variant causes
  • a variant emerges
  • dominant strain
  • new strain
  • weak strain
  • mild strain
  • deadly strain
  • original strain
  • previous strain
  • super mutant strain
  • omicron strain
  • to find a strain


  • variant of SARS-CoV-2: >1000
  • variant: 27
  • strain: 346
  • SARS-CoV-2 variant: >1000