"Can Ebola spread by coughing? By sneezing?
Unlike respiratory illnesses like measles or chickenpox, which can be transmitted by virus particles that remain suspended in the air after an infected person coughs or sneezes, Ebola is transmitted by direct contact with body fluids of a person who has symptoms of Ebola disease. Although coughing and sneezing are not common symptoms of Ebola, if a symptomatic patient with Ebola coughs or sneezes on someone, and saliva or mucus come into contact with that persons eyes, nose or mouth, these fluids may transmit the disease."
http://www.freerepublic.com/focus/f-news/3211774/posts
“..unless an infected person sneezes directly on you.”
One also has to be careful of touching infected items (door knobs, counters, etc.) where the virus can live for a day or two. (From coughs, sweat, etc.)