Via the Government of Canada: Travel Advice and Advisories for Liberia.
Foreign Affairs, Trade and Development Canada advises against non-essential travel to Liberia, due to the Ebola outbreak and its impacts on mobility and access to quality health care. There is no Government of Canada office in Liberia. As such, our ability to provide consular assistance is extremely limited.
If you are in Liberia and your presence is not essential, you should consider leaving by commercial means, as it is becoming increasingly difficult to do so.