Disease news you are not supposed to see
And the virus can survive outside of the host on surfaces like doorknobs, phones, handrails, clothing, airline seats (which someone vomits on) for 5-7 days depending on environmental conditions.
Sadly, that link is broken. I can find that statement on the WHO site in reference to Marburg virus (which is extremely similar to Ebola, so it's very possibly relevant here as well):http://www.who.int/csr/disease/marburg/factsheet/en/
People are infectious as long as their blood and secretions contain the virus. Ebola virus was isolated from seminal fluid up to the 61st day after the onset of illness in a laboratory acquired case. http://www.who.int/mediacentre/factsheets/fs103/en/index.html