If you are asked about the Ebola outbreak, in what order would you describe it?

A. It first began in Guinea in December 2013 and then spread to Liberia and Sierra Leone.

B. As of 14 December 2014, the World Health Organization (WHO) and respective governments have reported a total of 18,653 suspected cases and 7,265 deaths.

C. The most widespread epidemic of Ebola virus disease (commonly known as "Ebola") in history is currently ongoing in several West African countries.  

D. A small outbreak of twenty cases occurred in Nigeria and one case occurred in Senegal, both now declared disease-free.