I wonder if someone can be a carrier and pass Ebola on to others but not get it themselves ???
Yes. From Washingtonsblog:
New York Times: Some May Carry Ebola Without Showing Any Symptoms
......................."The Ebola virus, which has caused deaths from high fever and bleeding in African outbreaks, can also infect without producing illness, according to a new finding by African and European scientists.
The possibility of asymptomatic infection was only suggested in earlier studies, they said in last week’s issue of The Lancet, a medical journal published in London. Now they said they had documented such infections for the first time. They found that the Ebola virus could persist in the blood of asymptomatic infected individuals for two weeks after they were first exposed to an infected individual. How much longer the virus can persist is unknown.".......................