I am not a researcher but I can answer one of your questions: it is the less-lethal strain (west African clade) but it appears that 94 nucleotide and 51 amino a

I am not a researcher but I can answer one of your questions: it is the less-lethal strain (west African clade) but it appears that 94 nucleotide and 51 amino acid changes have occured since our sequencing of the closest strain in 2018. (That is apparently a lot by DNA virus standards, as a friend of mine who happens to be a molecularbiologist has told me.)