COVID-19 Variants : UK, South Africa, Japan

https://www.who.int/csr/don/31-december-2020-sars-cov2-variants/en/

https://www.who.int/csr/don/21-december-2020-sars-cov2-variant-united-kingdom/en/

https://www.who.int/csr/don/archive/year/2020/en/

https://www.gisaid.org/epiflu-applications/hcov-19-reference-sequence/

https://en.wikipedia.org/wiki/Variant_of_Concern_202012/01

https://www.bmj.com/content/371/bmj.m4857

https://asia.nikkei.com/Spotlight/Coronavirus/Japan-finds-new-COVID-virus-strain-distinct-from-UK-and-Africa-types

https://www.niid.go.jp/niid/en/