Well, that's promising. Apparently they can harvest those antibodies to treat sick people...Small studies of household contacts of Ebola victims show that some people are infected without ever falling ill — perhaps because of some unknown genetic advantage.But many Africans who have never seen a victim also have antibodies....
One of France’s leading Ebola experts says he believes that many rural villagers are “vaccinated” by eating fruit gnawed on by bats.
And it sounds like some kind of attenuated virus can be used for vaccination.