COVID-19 Mutations

Coronavirus Mutations

Two known new variants of the coronavirus have been identified since 501Y Welsh variant. This page will keep you updated on the new strains are being found throughout the world.


  • Started in South Africa
  • Confirmed in the UK as well
    • “highly concerning because it is yet more transmissible and it appears to have mutated further than the new variant discovered in the UK” ~ Matt Hancock on December 23, 2020


  • First found in the UK in November
  • Spread in Europe, Southeast Asia, Oceania, Israel, and the Middle East
  • 56% more transmissible (source: London School of Hygiene and Tropical Medicine)
  • Could be up to 70% more transmissible (source: COVID-19 Genomics UK)
  • Accumulated 17 mutations (only on the spike protein)


Since November 2020, a variant strain of SARS-CoV-2 has become prevalent in the southeast of England, reportedly accounting for 60% of recent infections in London. This variant has a mutation in the receptor-binding domain (RBD) of the spike protein at position 501, where amino acid asparagine (N) has been replaced with tyrosine (Y). The shorthand for this mutation is N501Y (source: CDC Implications of the Emerging SARS-CoV-2 Variant VOC 202012/01)


  • First detected in Manaus in the Amazonas state in Brazil in mid-December
  • The researchers published their findings on January 12
  • This variant was also detected in Japan (travelers who came back from Brazil)

Many countries have already suspended travel to/from the United Kingdom and the list is growing.

  • January 18, 2021 – California pauses vaccination due to several cases of allergic reactions – probably due to a bad batch of Moderna vaccines
  • January 14, 2021 – A health care worker in Harrisonville, MO suffered a severe allergic reaction
  • January 11, 2021 – Japan confirms 4 cases of Brazil P.1 variant from travelers who came back from Brazil
  • January 1, 2021 – A health care worker in Oregon was hospitalized for a severe allergic reaction to Moderna’s coronavirus vaccine.
  • December 31, 2020 – Florida identified the first case of the UK COVID-19 variant in Martin County, a male in his 20s with no history of travel.
  • December 30, 2020 – Two people in North Dakota have suffered severe allergic reactions after taking the Moderna COVID-19 vaccine.
  • December 30, 2020 – California confirmed the first case of a COVID variant. Colorado reports a second suspected case.
  • December 29, 2020 – Colorado confirmed the first case of the B117 variant. The patient has no records of travel.
  • December 26, 2020 – Canada confirmed two cases of the new COVID-19 variant strain in the Toronto area.
  • The US imposes travel restrictions on British travelers – must get a negative COVID-19 test before the flight
  • Japan bans all entries of all non-Japanese nationals from the world from December 28 through the end of January after two more people to have been infected with the new coronavirus variant
  • The Health Ministry of Israel has identified another 18 cases of the British mutation of coronavirus

Related Articles:

  • Implications of the Emerging SARS-CoV-2 Variant VOC 202012/01 (link)
  • What we know about the new UK variant of coronavirus – and what we need to find out (link)

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