A medical worker wearing protective gear enters the treatment hall of a temporary hospital for coronavirus patients in the Krylatskoye Ice Palace in Moscow, Russia, Nov. 18, 2020. (AP)

“… all currently known variants of COVID-19 belong to the SARS-CoV-2 strain and have not mutated enough to either be classified as their own strain or be ineffective against current and prospective COVID-19 vaccines. …”

https://www.ctvnews.ca/health/coronavirus/variant-or-strain-experts-explain-what-s-happened-to-the-coronavirus-1.5245923?cache=yes%3FautoPlay%3Dtrue