Orthopox - vaccinia/variola Mutations...
Of course you are aware, and did take into account.
All virus, bacteria, mould, fungi... mutate in the body due to it's acidic condition, the more acidic, the greater the mutation.
Same virus for example turns into some totally different.
If you alkaline the body, the virus will revert again to it's harmless form.
I'm not going to do the work for you but...
Take a look at Louie Pasteur, who was involved in his life, who's life did he made a living hell, and on Pasteur's death bed,why he said "He was right, the terrain of the body is everything..."
The Terrain Of The Body IS Everything.
In this light how about cow-pox & chicken-pox that has been said to be the cause of %90 of all our ill's though life, including stroke and heart attack, and even cancer.
See Vitamin C Foundation, & how the cure for all this has been know for about 100 years.
http://www.vitamincfoundation.org/