Thanks to everyone for the supportive posts re my mother.
I hadn’t heard of any other new variants except for the two originating in South African and the UK if indeed that is where the did originate. Mutations are going to be a function of numbers and the more infected the more likely development of new variants. It could go either way, more transmissable but less virulent which could be a helpful development or more transmissable and more virulent which wouldn’t be or anything inbetween.