According to the latest information, provided by the World Health Organisation, more than 20,000 people have been infected by Ebola in Sierra Leone, Liberia and Guinea since the outbreak of the virus began.
In the statement announced on December 29, 2014, Monday, the WHO stated that there have been more than 7,842 Ebola-related deaths recorded, and 20,081 cumulative cases of infection in the three worst hit countries.
Despite missions launched by countries and international groups like the United States and United Nations in the last few months, the disease continues to spread.
The WHO says that more than the third are laboratory-confirmed cases in Sierra Leone, which has become the worst-hit country in the worst outbreak of the disease on record.
As for December, 25 the situation was:
The last estimates of Ebola cases show that there were nearly 600 new cases of the disease in just five last days.