Don't know that. Both are unpredictable. E-D68 can mutate much more readily (can be good or bad).
Well there’s at least these FIVE:
>http://www.vox.com/2014/9/8/6122471/what-we-know-about-the-new-enterovirus-outbreak-virus<
And this one:
>http://www.usatoday.com/story/news/nation/2014/10/11/toddler-dies-from-enterovirus/17108865/<
And ZERO American Ebola deaths.