Hm. Actually, you might be on to something. If the martyr were to explode himself from the inside with grenades, there'd be ebola-carrying gore splattered everywhere.
Don't you think that the extreme temperature, which would be created as a result of the explosion will neutralize the Ebola virus? That said, Ebola is a very powerful weapon if it lands at the hands of extremists. For example, they can dilute the Ebola infected blood and then spray it on metro trains and other crowded places.
My idea's like 1000x cooler. Who wants to be known as the "train spraying maniac"? Sounds like indecent exposure more than a world-terrorizing psychopath.
I have no idea how hot someone's gore would be after a grenade fires inside them. I'd guess it depends if limbs were torn off before extremities had time to heat up too much. If we had some kind of un-citizens/logs/untouchables, I could probably experiment and find the answers to these critical questions, but alas - liberalism.