Question with options: can we draw the following hypothesis from the context?

Context:

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.

Hypothesis: The Ebola epidemic breaks out in Zaire.
Options are:
+ yes
+ no
A:
no