Hang on.
I think we have a problem.
We know that Ebola can be transmitted in semen up to 60 days after recovery.
Tested and found no viral presence? I don't know that this is true, but if true, I find it surprising.
This is informative:
http://www.cnn.com/2014/08/21/health/ebola-patient-release/
It also addresses your mention of transmission through semen.
Two blood tests, two days apart, for Brantly and Writebol. The Nebraska hospital where Dr. Sacra was treated required three clear tests.
I am not concerned about the survivors, other than to wish them a full recovery. I am deeply concerned about worldwide travel still being allowed from the hot zone.