Both the South African and UK variant seem to be under the name 501Y.V2 but the South African version has a mutation not seen in the UK strain:
> The variant in South Africa carries two other mutations in the spike protein (E484K and K417N, among others) which are not present in the U.K. strain
This three day old article also anticipated this study results:
> While scientists believe the U.K. variant is not likely to affect the efficacy of the vaccines currently being rolled out in the West, there is more uncertainty regarding the other strain.
I’m guessing they are both of the same “strain” but of different “variant”. But I don’t know enough about how virus taxonomy works to validate that. Sounds like two levels of mutation...
> The variant in South Africa carries two other mutations in the spike protein (E484K and K417N, among others) which are not present in the U.K. strain
This three day old article also anticipated this study results:
> While scientists believe the U.K. variant is not likely to affect the efficacy of the vaccines currently being rolled out in the West, there is more uncertainty regarding the other strain.
https://www.cnbc.com/2021/01/06/south-africa-covid-strain-a-...
I’m guessing they are both of the same “strain” but of different “variant”. But I don’t know enough about how virus taxonomy works to validate that. Sounds like two levels of mutation...