Jan. 14, 2016 -- The two-year Ebola outbreak in West Africa that claimed more than 11,300 lives is over, the World Health Organization said Thursday.
The agency made the announcement after determining that Liberia was Ebola-free. The two other West African nations at the heart of the outbreak -- Sierra Leone and Guinea -- were previously declared free of the deadly disease.
However, the WHO warned that risks remain, the Associated Press reported.
"While this is an important milestone and a very important step forward, we have to say that the job is still not done," Rick Brennan, WHO director of emergency risk assessment and humanitarian response, told reporters. "That's because there is still ongoing risk of re-emergence of the disease because of persistence of the virus in a proportion of survivors."
"The risk of re-introduction of infection is diminishing as the virus gradually clears from the survivor population, but we still anticipate more flare-ups and must be prepared for them," Dr. Bruce Aylward, WHO's special representative for the Ebola Response, said in a statement, the AP reported.