There are four identified subtypes of Ebola virus. Three of the four have caused disease in humans: Ebola-Zaire, Ebola-Sudan, and Ebola-Ivory Coast. The fourth, Ebola-Reston, has caused disease in non-human primates, but not in humans.
A majority of Ebola is harmless to humans
3/4 impact humans
( z1 harmful :polarity - :ARG0 ( z2 disease :name ( z3 name :op "Ebola" ) :quant ( z4 majority ) ) :ARG1 ( z5 human ) )